{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-40334", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-04-10T22:50:01.357Z", "datePublished": "2026-04-17T23:16:38.751Z", "dateUpdated": "2026-04-17T23:16:38.751Z"}, "containers": {"cna": {"title": "libgphoto2 missing null termination in ptp_unpack_Canon_FE() filename buffer in ptp-pack.c", "problemTypes": [{"descriptions": [{"cweId": "CWE-170", "lang": "en", "description": "CWE-170: Improper Null Termination", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "PHYSICAL", "availabilityImpact": "LOW", "baseScore": 3.5, "baseSeverity": "LOW", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L", "version": "3.1"}}], "references": [{"name": "https://github.com/gphoto/libgphoto2/security/advisories/GHSA-ph87-cc3j-c6hm", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/gphoto/libgphoto2/security/advisories/GHSA-ph87-cc3j-c6hm"}, {"name": "https://github.com/gphoto/libgphoto2/commit/259fc7d3bfe534ce4b114c464f55b448670ab873", "tags": ["x_refsource_MISC"], "url": "https://github.com/gphoto/libgphoto2/commit/259fc7d3bfe534ce4b114c464f55b448670ab873"}], "affected": [{"vendor": "gphoto", "product": "libgphoto2", "versions": [{"version": "<= 2.5.33", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-04-17T23:16:38.751Z"}, "descriptions": [{"lang": "en", "value": "libgphoto2 is a camera access and control library. In versions up to and including 2.5.33, a missing null terminator exists in ptp_unpack_Canon_FE() in camlibs/ptp2/ptp-pack.c (line 1377). The function copies a filename into a 13-byte buffer using strncpy without explicitly null-terminating the result. If the source data is exactly 13 bytes with no null terminator, the buffer is left unterminated, leading to out-of-bounds reads in any subsequent string operation. Commit 259fc7d3bfe534ce4b114c464f55b448670ab873 patches the issue."}], "source": {"advisory": "GHSA-ph87-cc3j-c6hm", "discovery": "UNKNOWN"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "libgphoto2 is a camera access and control library. In versions up to and including 2.5.33, a missing null terminator exists in ptp_unpack_Canon_FE() in camlibs/ptp2/ptp-pack.c (line 1377). The function copies a filename into a 13-byte buffer using strncpy without explicitly null-terminating the result. If the source data is exactly 13 bytes with no null terminator, the buffer is left unterminated, leading to out-of-bounds reads in any subsequent string operation. Commit 259fc7d3bfe534ce4b114c464f55b448670ab873 patches the issue."}], "id": "CVE-2026-40334", "lastModified": "2026-04-18T00:16:37.257", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "PHYSICAL", "availabilityImpact": "LOW", "baseScore": 3.5, "baseSeverity": "LOW", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 0.9, "impactScore": 2.5, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-04-18T00:16:37.257", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/gphoto/libgphoto2/commit/259fc7d3bfe534ce4b114c464f55b448670ab873"}, {"source": "security-advisories@github.com", "url": "https://github.com/gphoto/libgphoto2/security/advisories/GHSA-ph87-cc3j-c6hm"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-170"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{}