{"schema":"threatline.record/2","record":{"id":"CVE-2026-107733","aliases":["GHSA-p2ph-2rvm-q37m"],"summary":"SumatraPDF: Null-pointer dereference in `CmdExec` when no document tab is open","details":"SumatraPDF is a multi-format reader for Windows. In 3.6.1 and earlier, FrameOnCommand() handles CmdExec by passing a null current-tab pointer to RunWithExe(), which dereferences WindowTab::filePath. A local process in the same interactive Windows session, at an integrity level greater than or equal to SumatraPDF's under Windows UIPI, can dispatch CmdExec over DDE or WM_COPYDATA while no document tab is open, causing abrupt process termination and loss of unsaved state. 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-2026-107733","source_modified_at":"2026-10-14T01:33:16.443Z","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":0.00106,"percentile":0.01071,"score_date":"2026-10-23"},"published_at":"2026-10-08T22:23:26.389Z","modified_at":"2026-10-14T01:33:16.443Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-107733","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-14T01:33:16.443Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-107733","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-p2ph-2rvm-q37m","tags":["exploit"]},{"source":"CVE List","url":"https://github.com/sumatrapdfreader/sumatrapdf/commit/013ad659c7de13fa15624d1f8a24e3231c50516b","tags":["x_refsource_MISC"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"poc","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-14T01:32:51.550764Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-14T01:33:16.443Z","content_hash":"d8be52d8e796e83443bd73c2ea8dbe69b946590363df7a9bba327dcf5c735728"}}