{"id":"CVE-2026-40333","summary":"libgphoto2 has OOB read in ptp_unpack_EOS_ImageFormat() and ptp_unpack_EOS_CustomFuncEx() due to missing length parameter in ptp-pack.c","details":"libgphoto2 is a camera access and control library. In versions up to and including 2.5.33, two functions in camlibs/ptp2/ptp-pack.c accept a data pointer but no length parameter, performing unbounded reads. Their callers in ptp_unpack_EOS_events() have xsize available but never pass it, leaving both functions unable to validate reads against the actual buffer boundary. Commit 1817ecead20c2aafa7549dac9619fe38f47b2f53 patches the issue.","aliases":["GHSA-hq94-cp6h-3gjp"],"modified":"2026-07-08T08:13:12.471848854Z","published":"2026-04-17T23:11:11.073Z","related":["openSUSE-SU-2026:10916-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40333.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-125"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40333.json"},{"type":"ADVISORY","url":"https://github.com/gphoto/libgphoto2/security/advisories/GHSA-hq94-cp6h-3gjp"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40333"},{"type":"FIX","url":"https://github.com/gphoto/libgphoto2/commit/1817ecead20c2aafa7549dac9619fe38f47b2f53"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/gphoto/libgphoto2","events":[{"introduced":"0"},{"fixed":"1817ecead20c2aafa7549dac9619fe38f47b2f53"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"2.5.33"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["v2.5.32","libgphoto2-2_5_32-release","v2.5.31","libgphoto2-2_5_31-release","v2.5.30","libgphoto2-2_5_30-release","v2.5.29","libgphoto2-2_5_29-release","v2.5.28","libgphoto2-2_5_28-release","v2.5.27","libgphoto2-2_5_27-release","v2.5.26","libgphoto2-2_5_26-release","v2.5.25","libgphoto2-2_5_25-release","v2.5.24","libgphoto2-2_5_24-release","libgphoto2-2_5_23-release","libgphoto2-2_5_22-release","libgphoto2-2_5_21-release","libgphoto2-2_5_20-release","libgphoto2-2_5_19-release","libgphoto2-2_5_18-release","libgphoto2-2_5_17-release","libgphoto2-2_5_16-release","libgphoto2-2_5_15-release","libgphoto2-2_5_14-release","libgphoto2-2_5_13-release","libgphoto2-2_5_12-release","libgphoto2-2_5_11-release","libgphoto2-2_5_10-release","libgphoto2-2_5_9-release","libgphoto2-2_5_8-release","libgphoto2-2_5_7-release","libgphoto2-2_5_6-release","libgphoto2-2_5_5_1-release","libgphoto2-2_5_5-release","libgphoto2-2_5_4-release","libgphoto2-2_5_3_1-release","libgphoto2-2_5_3-release","libgphoto2-2_5_2-release","libgphoto2-2_5_1_1-release","libgphoto2-2_5_1-release","libgphoto2-2_5_0-release"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-40333.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"}]}