{"id":"CVE-2026-107736","summary":"SumatraPDF: stack buffer overflow while processing EXIF Orientation metadata","details":"SumatraPDF is a multi-format reader for Windows. In 3.6.1 and earlier, MaybeFlipBitmap() asks GDI+ to read the attacker-controlled PropertyTagOrientation size through GetPropertyItem() while supplying only a fixed 64-byte buf on the stack. Opening a crafted TIFF with enough EXIF Orientation values can cause attacker-selected bytes to overwrite stack control data, while tested builds terminate through the stack cookie check. No broader impact is claimed beyond the advisory-supported conditions. No fixed version is available as of this review.","aliases":["GHSA-px68-7vwv-mxpr"],"modified":"2026-10-10T02:47:23.977515883Z","published":"2026-10-08T22:33:16.166Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-121"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107736.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107736.json"},{"type":"ADVISORY","url":"https://github.com/sumatrapdfreader/sumatrapdf/security/advisories/GHSA-px68-7vwv-mxpr"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-107736"},{"type":"FIX","url":"https://github.com/sumatrapdfreader/sumatrapdf/commit/6fe2e0239d8ef3466174ac92f3f56e967ce1a4a7"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/sumatrapdfreader/sumatrapdf","events":[{"introduced":"0"},{"fixed":"6fe2e0239d8ef3466174ac92f3f56e967ce1a4a7"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"3.6.1"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["3.2","3.1.2rel","3.0split","2.5split","2.4split","2.3split","2.2split","2.1split","2.0split","1.9split","1.8split","1.7split","1.6split","1.5split","1.4split"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-107736.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}]}