{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-57188",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-06-24T02:00:46.799Z",
        "datePublished": "2026-10-27T17:55:29.170Z",
        "dateUpdated": "2026-10-27T17:55:29.170Z"
    },
    "containers": {
        "cna": {
            "title": "Asterisk: Stack buffer overflow in res_xmpp XMPP namespace prefix handling",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-787",
                            "lang": "en",
                            "description": "CWE-787: Out-of-bounds Write",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "LOW",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "HIGH",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 7.1,
                        "baseSeverity": "HIGH",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                        "version": "4.0"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/asterisk/asterisk/security/advisories/GHSA-mxgm-8c6f-5p8f",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/asterisk/asterisk/security/advisories/GHSA-mxgm-8c6f-5p8f"
                },
                {
                    "name": "https://github.com/asterisk/asterisk/commit/12072a559f592736a44dd9fbe1594e84714edfb4",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/asterisk/asterisk/commit/12072a559f592736a44dd9fbe1594e84714edfb4"
                },
                {
                    "name": "https://github.com/asterisk/asterisk/commit/1328dbb503da4aa11a480a9c28e170f17e5f4e84",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/asterisk/asterisk/commit/1328dbb503da4aa11a480a9c28e170f17e5f4e84"
                },
                {
                    "name": "https://github.com/asterisk/asterisk/commit/3c4b08cf94eeaa3faefb3ae6c2d6ce1bd9747a13",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/asterisk/asterisk/commit/3c4b08cf94eeaa3faefb3ae6c2d6ce1bd9747a13"
                },
                {
                    "name": "https://github.com/asterisk/asterisk/commit/433102c16b8edfc31d28c96166fef03fe72fb923",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/asterisk/asterisk/commit/433102c16b8edfc31d28c96166fef03fe72fb923"
                },
                {
                    "name": "https://github.com/asterisk/asterisk/commit/5e626250628b2579530f3f17e7b0aa37d082873b",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/asterisk/asterisk/commit/5e626250628b2579530f3f17e7b0aa37d082873b"
                },
                {
                    "name": "https://github.com/asterisk/asterisk/commit/d570a85e45153a36919ace5d0ab06a195b30f9d1",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/asterisk/asterisk/commit/d570a85e45153a36919ace5d0ab06a195b30f9d1"
                },
                {
                    "name": "https://github.com/asterisk/asterisk/commit/e329a6803ac5214028f98cc5f0b7167d66e32c08",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/asterisk/asterisk/commit/e329a6803ac5214028f98cc5f0b7167d66e32c08"
                },
                {
                    "name": "https://github.com/asterisk/asterisk/releases/tag/20.20.1",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/asterisk/asterisk/releases/tag/20.20.1"
                },
                {
                    "name": "https://github.com/asterisk/asterisk/releases/tag/21.12.3",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/asterisk/asterisk/releases/tag/21.12.3"
                },
                {
                    "name": "https://github.com/asterisk/asterisk/releases/tag/22.10.1",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/asterisk/asterisk/releases/tag/22.10.1"
                },
                {
                    "name": "https://github.com/asterisk/asterisk/releases/tag/23.4.1",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/asterisk/asterisk/releases/tag/23.4.1"
                },
                {
                    "name": "https://github.com/asterisk/asterisk/releases/tag/certified-20.7-cert11",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/asterisk/asterisk/releases/tag/certified-20.7-cert11"
                },
                {
                    "name": "https://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3"
                },
                {
                    "name": "https://github.com/asterisk/asterisk/tree/24.0.0-pre1",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/asterisk/asterisk/tree/24.0.0-pre1"
                }
            ],
            "affected": [
                {
                    "vendor": "asterisk",
                    "product": "asterisk",
                    "versions": [
                        {
                            "version": "< 20.20.1",
                            "status": "affected"
                        },
                        {
                            "version": ">= 21.0.0-pre1, < 21.12.3",
                            "status": "affected"
                        },
                        {
                            "version": ">= 22.0.0-pre1, < 22.10.1",
                            "status": "affected"
                        },
                        {
                            "version": ">= 23.0.0-pre1, < 23.4.1",
                            "status": "affected"
                        }
                    ]
                },
                {
                    "vendor": "asterisk",
                    "product": "certified-asterisk",
                    "versions": [
                        {
                            "version": "< 20.7-cert11",
                            "status": "affected"
                        },
                        {
                            "version": ">= 22.8-cert1-pre1, < 22.8-cert3",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-10-27T17:55:29.170Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Asterisk is an open source private branch exchange and telephony toolkit. Prior to Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3, an authenticated attacker may cause a stack buffer overflow in `res_xmpp` `XMPP namespace prefix` handling using carefully crafted packets. The `res_xmpp` module must be loaded, an XMPP connection must be configured in `xmpp.conf`, and the attacker must have an XMPP account on the same or a federated server. This issue is fixed in Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3."
                }
            ],
            "source": {
                "advisory": "GHSA-mxgm-8c6f-5p8f",
                "discovery": "UNKNOWN"
            }
        }
    }
}