{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-20280",
        "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "state": "PUBLISHED",
        "assignerShortName": "cisco",
        "dateReserved": "2025-10-08T11:59:15.403Z",
        "datePublished": "2026-09-02T16:14:19.941Z",
        "dateUpdated": "2026-09-03T03:56:28.536Z"
    },
    "containers": {
        "cna": {
            "title": "Cisco IOS XR Software Security Hardening Release: September 2026",
            "metrics": [
                {
                    "format": "cvssV3_1",
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                        "baseScore": 8.8,
                        "baseSeverity": "HIGH",
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "privilegesRequired": "LOW",
                        "userInteraction": "NONE",
                        "scope": "UNCHANGED",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "availabilityImpact": "HIGH"
                    }
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR Software engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening releases that address multiple internally discovered vulnerabilities.\r\n\r\nThe vulnerabilities tracked by CVE-2026-20280 are related to improper checking or handling of exceptional condition issues that are grouped under the Common Weakness Enumeration (CWE) CWE-703."
                }
            ],
            "references": [
                {
                    "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-iosxr-qg64NcM",
                    "name": "cisco-sa-hardening-iosxr-qg64NcM"
                }
            ],
            "exploits": [
                {
                    "lang": "en",
                    "value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory."
                }
            ],
            "source": {
                "advisory": "cisco-sa-hardening-iosxr-qg64NcM",
                "discovery": "INTERNAL",
                "defects": [
                    "CSCwt41683"
                ]
            },
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "description": "Improper Check or Handling of Exceptional Conditions",
                            "type": "cwe",
                            "cweId": "CWE-703"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "Cisco",
                    "product": "Cisco IOS XR Software",
                    "versions": [
                        {
                            "version": "6.5.29",
                            "status": "affected"
                        },
                        {
                            "version": "7.0.1",
                            "status": "affected"
                        },
                        {
                            "version": "6.5.26",
                            "status": "affected"
                        },
                        {
                            "version": "6.5.25",
                            "status": "affected"
                        },
                        {
                            "version": "6.5.28",
                            "status": "affected"
                        },
                        {
                            "version": "6.5.90",
                            "status": "affected"
                        },
                        {
                            "version": "7.1.1",
                            "status": "affected"
                        },
                        {
                            "version": "7.0.90",
                            "status": "affected"
                        },
                        {
                            "version": "6.7.1",
                            "status": "affected"
                        },
                        {
                            "version": "7.0.2",
                            "status": "affected"
                        },
                        {
                            "version": "7.1.15",
                            "status": "affected"
                        },
                        {
                            "version": "7.2.1",
                            "status": "affected"
                        },
                        {
                            "version": "7.1.2",
                            "status": "affected"
                        },
                        {
                            "version": "6.7.2",
                            "status": "affected"
                        },
                        {
                            "version": "7.0.11",
                            "status": "affected"
                        },
                        {
                            "version": "7.0.12",
                            "status": "affected"
                        },
                        {
                            "version": "7.0.14",
                            "status": "affected"
                        },
                        {
                            "version": "7.1.25",
                            "status": "affected"
                        },
                        {
                            "version": "7.2.12",
                            "status": "affected"
                        },
                        {
                            "version": "7.3.1",
                            "status": "affected"
                        },
                        {
                            "version": "7.1.3",
                            "status": "affected"
                        },
                        {
                            "version": "6.7.3",
                            "status": "affected"
                        },
                        {
                            "version": "7.4.1",
                            "status": "affected"
                        },
                        {
                            "version": "7.2.2",
                            "status": "affected"
                        },
                        {
                            "version": "6.7.4",
                            "status": "affected"
                        },
                        {
                            "version": "6.5.31",
                            "status": "affected"
                        },
                        {
                            "version": "7.3.15",
                            "status": "affected"
                        },
                        {
                            "version": "7.3.16",
                            "status": "affected"
                        },
                        {
                            "version": "6.8.1",
                            "status": "affected"
                        },
                        {
                            "version": "7.4.15",
                            "status": "affected"
                        },
                        {
                            "version": "6.5.32",
                            "status": "affected"
                        },
                        {
                            "version": "7.3.2",
                            "status": "affected"
                        },
                        {
                            "version": "7.5.1",
                            "status": "affected"
                        },
                        {
                            "version": "7.4.16",
                            "status": "affected"
                        },
                        {
                            "version": "7.3.27",
                            "status": "affected"
                        },
                        {
                            "version": "7.6.1",
                            "status": "affected"
                        },
                        {
                            "version": "7.5.2",
                            "status": "affected"
                        },
                        {
                            "version": "7.8.1",
                            "status": "affected"
                        },
                        {
                            "version": "7.6.15",
                            "status": "affected"
                        },
                        {
                            "version": "7.5.12",
                            "status": "affected"
                        },
                        {
                            "version": "7.8.12",
                            "status": "affected"
                        },
                        {
                            "version": "7.3.3",
                            "status": "affected"
                        },
                        {
                            "version": "7.7.1",
                            "status": "affected"
                        },
                        {
                            "version": "6.8.2",
                            "status": "affected"
                        },
                        {
                            "version": "7.3.4",
                            "status": "affected"
                        },
                        {
                            "version": "7.4.2",
                            "status": "affected"
                        },
                        {
                            "version": "6.7.35",
                            "status": "affected"
                        },
                        {
                            "version": "6.9.1",
                            "status": "affected"
                        },
                        {
                            "version": "7.6.2",
                            "status": "affected"
                        },
                        {
                            "version": "7.5.3",
                            "status": "affected"
                        },
                        {
                            "version": "7.7.2",
                            "status": "affected"
                        },
                        {
                            "version": "6.9.2",
                            "status": "affected"
                        },
                        {
                            "version": "7.9.1",
                            "status": "affected"
                        },
                        {
                            "version": "7.10.1",
                            "status": "affected"
                        },
                        {
                            "version": "7.8.2",
                            "status": "affected"
                        },
                        {
                            "version": "7.5.4",
                            "status": "affected"
                        },
                        {
                            "version": "6.5.33",
                            "status": "affected"
                        },
                        {
                            "version": "7.8.22",
                            "status": "affected"
                        },
                        {
                            "version": "7.7.21",
                            "status": "affected"
                        },
                        {
                            "version": "7.9.2",
                            "status": "affected"
                        },
                        {
                            "version": "7.3.5",
                            "status": "affected"
                        },
                        {
                            "version": "7.5.5",
                            "status": "affected"
                        },
                        {
                            "version": "7.11.1",
                            "status": "affected"
                        },
                        {
                            "version": "7.9.21",
                            "status": "affected"
                        },
                        {
                            "version": "7.10.2",
                            "status": "affected"
                        },
                        {
                            "version": "24.1.1",
                            "status": "affected"
                        },
                        {
                            "version": "7.6.3",
                            "status": "affected"
                        },
                        {
                            "version": "7.3.6",
                            "status": "affected"
                        },
                        {
                            "version": "7.5.52",
                            "status": "affected"
                        },
                        {
                            "version": "7.11.2",
                            "status": "affected"
                        },
                        {
                            "version": "24.2.1",
                            "status": "affected"
                        },
                        {
                            "version": "24.1.2",
                            "status": "affected"
                        },
                        {
                            "version": "24.2.11",
                            "status": "affected"
                        },
                        {
                            "version": "24.3.1",
                            "status": "affected"
                        },
                        {
                            "version": "24.4.1",
                            "status": "affected"
                        },
                        {
                            "version": "24.2.2",
                            "status": "affected"
                        },
                        {
                            "version": "7.8.23",
                            "status": "affected"
                        },
                        {
                            "version": "7.11.21",
                            "status": "affected"
                        },
                        {
                            "version": "24.2.20",
                            "status": "affected"
                        },
                        {
                            "version": "24.3.2",
                            "status": "affected"
                        },
                        {
                            "version": "24.4.10",
                            "status": "affected"
                        },
                        {
                            "version": "6.5.35",
                            "status": "affected"
                        },
                        {
                            "version": "25.1.1",
                            "status": "affected"
                        },
                        {
                            "version": "24.4.2",
                            "status": "affected"
                        },
                        {
                            "version": "24.3.20",
                            "status": "affected"
                        },
                        {
                            "version": "24.4.15",
                            "status": "affected"
                        },
                        {
                            "version": "25.2.1",
                            "status": "affected"
                        },
                        {
                            "version": "6.5.351",
                            "status": "affected"
                        },
                        {
                            "version": "25.1.2",
                            "status": "affected"
                        },
                        {
                            "version": "24.3.30",
                            "status": "affected"
                        },
                        {
                            "version": "25.3.1",
                            "status": "affected"
                        },
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                            "version": "6.5.352",
                            "status": "affected"
                        },
                        {
                            "version": "24.4.30",
                            "status": "affected"
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                            "version": "24.2.21",
                            "status": "affected"
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                        {
                            "version": "25.4.1",
                            "status": "affected"
                        },
                        {
                            "version": "25.2.2",
                            "status": "affected"
                        },
                        {
                            "version": "25.2.15",
                            "status": "affected"
                        },
                        {
                            "version": "7.2.0",
                            "status": "affected"
                        },
                        {
                            "version": "7.0.0",
                            "status": "affected"
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                            "status": "affected"
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                            "status": "affected"
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                            "status": "affected"
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                            "version": "25.3.15",
                            "status": "affected"
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                        {
                            "version": "26.2.100",
                            "status": "affected"
                        },
                        {
                            "version": "25.4.2",
                            "status": "affected"
                        },
                        {
                            "version": "26.2.1",
                            "status": "affected"
                        },
                        {
                            "version": "25.4.30",
                            "status": "affected"
                        },
                        {
                            "version": "26.1.2",
                            "status": "affected"
                        },
                        {
                            "version": "25.4.201",
                            "status": "affected"
                        },
                        {
                            "version": "26.2.101",
                            "status": "affected"
                        }
                    ],
                    "defaultStatus": "unknown"
                }
            ],
            "providerMetadata": {
                "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
                "shortName": "cisco",
                "dateUpdated": "2026-09-02T16:14:19.941Z"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-09-02T00:00:00+00:00",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3",
                                "id": "CVE-2026-20280"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
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}