{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-121942","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-11-04T12:05:50.614Z","datePublished":"2026-11-04T12:31:20.522Z","dateUpdated":"2026-11-04T18:53:01.719Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-11-04T12:31:20.522Z"},"datePublic":"2026-10-22T02:11:39.000Z","title":"ZBar through 0.23.95 Out-of-Bounds Read via _zbar_sq_decode() in sqcode.c","descriptions":[{"lang":"en","value":"ZBar through 0.23.95 contains an out-of-bounds read vulnerability in _zbar_sq_decode() in zbar/sqcode.c that allows attackers to read heap memory outside the image buffer via crafted SQ code images. Attackers can supply an image with a skewed SQ code finder pattern near the edge, producing unchecked sample coordinates that crash the decoder and leak bytes into output."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Out-of-bounds Read","cweId":"CWE-125","type":"CWE"}]}],"affected":[{"vendor":"mchehab","product":"zbar","defaultStatus":"unaffected","versions":[{"version":"0","lessThanOrEqual":"0.23.95","status":"affected","versionType":"semver"}],"packageURL":"pkg:github/mchehab/zbar","repo":"https://github.com/mchehab/zbar"}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N","attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"PASSIVE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":6.9,"baseSeverity":"MEDIUM"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":6.1,"baseSeverity":"MEDIUM"}}],"references":[{"url":"https://github.com/mchehab/zbar/issues/351","tags":["issue-tracking"]},{"url":"https://hackmd.io/@haindpwn/zbar-sqcode-sampling-oob-read","tags":["third-party-advisory"]},{"url":"https://github.com/mchehab/zbar/blob/0.23.95/zbar/sqcode.c#L529-L567","tags":["technical-description"]},{"name":"VulnCheck Advisory: ZBar through 0.23.95 Out-of-Bounds Read via _zbar_sq_decode() in sqcode.c","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/zbar-through-0.23.95-out-of-bounds-read-via-zbar-sq-decode-in-sqcode-c"}],"credits":[{"lang":"en","value":"HaiND from the Post and Telecommunication Institute of Technology","type":"finder"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"references":[{"url":"https://hackmd.io/@haindpwn/cve-2026-121942-zbar-sqcode-sampling-oob-read","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-11-04T18:52:37.472258Z","id":"CVE-2026-121942","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"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":"2026-11-04T18:53:01.719Z"}}]}}