{"schema":"threatline.record/2","record":{"id":"CVE-2026-107736","aliases":["GHSA-px68-7vwv-mxpr"],"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.","categories":["Unclassified"],"product":"sumatrapdf","vendor":"sumatrapdfreader","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-107736","source_modified_at":"2026-10-09T15:12:35.540Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"sumatrapdf","vendor":"sumatrapdfreader","versions":[{"version":"<= 3.6.1","status":"affected"}],"defaultStatus":null}],"fixed_versions":[],"cvss":6.8,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.0012,"percentile":0.01704,"score_date":"2026-10-23"},"published_at":"2026-10-08T22:33:16.166Z","modified_at":"2026-10-09T15:12:35.540Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-107736","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-09T15:12:35.540Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-107736","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/sumatrapdfreader/sumatrapdf/security/advisories/GHSA-px68-7vwv-mxpr","tags":["x_refsource_CONFIRM"]},{"source":"CVE List","url":"https://github.com/sumatrapdfreader/sumatrapdf/commit/6fe2e0239d8ef3466174ac92f3f56e967ce1a4a7","tags":["x_refsource_MISC"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-09T14:54:54.646434Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-09T15:12:35.540Z","content_hash":"30da569938d722d282b33e43738fdbcdabb1d32e72d37a4fa73e533d69790ed9"}}