{
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    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-23749",
        "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "state": "PUBLISHED",
        "assignerShortName": "VulnCheck",
        "dateReserved": "2026-01-15T18:42:20.938Z",
        "datePublished": "2026-02-26T17:32:30.795Z",
        "dateUpdated": "2026-07-14T15:53:37.722Z"
    },
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                "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
                "shortName": "VulnCheck",
                "dateUpdated": "2026-07-14T15:53:37.722Z"
            },
            "title": "Golioth Firmware SDK < 0.22.0 Blockwise Transfer Path Out-of-Bounds Read",
            "descriptions": [
                {
                    "lang": "en",
                    "supportingMedia": [
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                            "base64": false,
                            "type": "text/html",
                            "value": "Golioth Firmware SDK version&nbsp;<span style=\"background-color: rgb(255, 255, 255);\">0.19.1</span>&nbsp;prior to 0.22.0, fixed in commit&nbsp;0e788217, contain an out-of-bounds read due to improper null termination of a blockwise transfer path. blockwise_transfer_init() accepts a path whose length equals CONFIG_GOLIOTH_COAP_MAX_PATH_LEN and copies it using strncpy() without guaranteeing a trailing NUL byte, leaving ctx-&gt;path unterminated. A later strlen() on this buffer (in golioth_coap_client_get_internal()) can read past the end of the allocation, resulting in a crash/denial of service. The input is application-controlled (not network by default)."
                        }
                    ],
                    "value": "Golioth Firmware SDK version 0.19.1 prior to 0.22.0, fixed in commit 0e788217, contain an out-of-bounds read due to improper null termination of a blockwise transfer path. blockwise_transfer_init() accepts a path whose length equals CONFIG_GOLIOTH_COAP_MAX_PATH_LEN and copies it using strncpy() without guaranteeing a trailing NUL byte, leaving ctx->path unterminated. A later strlen() on this buffer (in golioth_coap_client_get_internal()) can read past the end of the allocation, resulting in a crash/denial of service. The input is application-controlled (not network by default)."
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-170",
                            "description": "CWE-170: Improper Null Termination",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "defaultStatus": "unaffected",
                    "packageURL": "pkg:github/golioth/golioth-firmware-sdk",
                    "product": "Firmware SDK",
                    "repo": "https://github.com/golioth/golioth-firmware-sdk",
                    "vendor": "Golioth",
                    "versions": [
                        {
                            "lessThan": "0.22.0",
                            "status": "affected",
                            "version": "0.19.1",
                            "versionType": "semver"
                        },
                        {
                            "status": "unaffected",
                            "version": "0e788217ab4b61a7c1d9fadd1b4a40f5f538a26d",
                            "versionType": "git"
                        }
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                        "Automatable": "NOT_DEFINED",
                        "Recovery": "NOT_DEFINED",
                        "Safety": "NOT_DEFINED",
                        "attackComplexity": "LOW",
                        "attackRequirements": "PRESENT",
                        "attackVector": "LOCAL",
                        "baseScore": 2.1,
                        "baseSeverity": "LOW",
                        "privilegesRequired": "NONE",
                        "providerUrgency": "NOT_DEFINED",
                        "subAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "userInteraction": "NONE",
                        "valueDensity": "NOT_DEFINED",
                        "vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
                        "version": "4.0",
                        "vulnAvailabilityImpact": "LOW",
                        "vulnConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "NONE",
                        "vulnerabilityResponseEffort": "NOT_DEFINED"
                    },
                    "format": "CVSS",
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "GENERAL"
                        }
                    ]
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                        "availabilityImpact": "LOW",
                        "baseScore": 2.9,
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                        "confidentialityImpact": "NONE",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
                        "version": "3.1"
                    },
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                            "lang": "en",
                            "value": "GENERAL"
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            ],
            "references": [
                {
                    "tags": [
                        "technical-description"
                    ],
                    "url": "https://secmate.dev/disclosures/SECMATE-2025-0017"
                },
                {
                    "tags": [
                        "technical-description",
                        "exploit"
                    ],
                    "url": "https://blog.secmate.dev/posts/golioth-vulnerabilities-disclosure/"
                },
                {
                    "tags": [
                        "release-notes"
                    ],
                    "url": "https://github.com/golioth/golioth-firmware-sdk/releases/tag/v0.22.0"
                },
                {
                    "tags": [
                        "patch"
                    ],
                    "url": "https://github.com/golioth/golioth-firmware-sdk/commit/0e788217ab4b61a7c1d9fadd1b4a40f5f538a26d"
                },
                {
                    "tags": [
                        "third-party-advisory"
                    ],
                    "url": "https://www.vulncheck.com/advisories/golioth-firmware-sdk-blockwise-transfer-path-out-of-bounds-read"
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "type": "finder",
                    "value": "SecMate (https://secmate.dev)"
                }
            ],
            "x_generator": {
                "engine": "Vulnogram 0.5.0"
            },
            "source": {
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-02-27T17:55:58.632725Z",
                                "id": "CVE-2026-23749",
                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "Automatable": "no"
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                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-02-27T17:56:08.833Z"
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}