{"id":"CVE-2026-107735","title":"SumatraPDF is a multi-format reader for Windows","summary":"SumatraPDF is a multi-format reader for Windows. In 3.6.1 and earlier, InitializePolicies() starts the sumatrapdfrestrict.ini path with gPolicyRestrictions set to Perm::All and only ORs permission bits, so the INI file never revokes perm…","severity":"medium","cwe":["CWE-636"],"published":"2026-10-08","updated":"2026-10-09","sourceUpdated":"2026-10-09T16:17:24.527","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-107735","references":[{"url":"https://github.com/sumatrapdfreader/sumatrapdf/commit/f72948b59405d3ddba527789898050ef411d0bb8","label":"security-advisories@github.com"},{"url":"https://github.com/sumatrapdfreader/sumatrapdf/security/advisories/GHSA-crhm-w5qr-wjj4","label":"security-advisories@github.com"},{"url":"https://github.com/sumatrapdfreader/sumatrapdf/security/advisories/GHSA-crhm-w5qr-wjj4","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"ingestedAt":"2026-10-09T00:19:50.971Z","epss":0.00172,"epssPercentile":0.06579,"vendor":"sumatrapdfreader","product":"sumatrapdf","affected":["sumatrapdf <= 3.6.1"],"cvss":5.4,"cvssVector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"total","timestamp":"2026-10-09T15:23:33.802851Z"},"cvssSource":"cna","slug":"CVE-2026-107735","body":"## Overview\n\nSumatraPDF is a multi-format reader for Windows. In 3.6.1 and earlier, InitializePolicies() starts the sumatrapdfrestrict.ini path with gPolicyRestrictions set to Perm::All and only ORs permission bits, so the INI file never revokes permissions. Deploying SumatraPDF with this INI file, including a malformed file or zero-valued permission settings, can silently bypass configured disk, network, printing, registry, clipboard, preference, and fullscreen restrictions. The -restrict command-line path works correctly and is not affected. No fixed version is available as of this review.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":29.7,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[{"seq":220586,"id":"CVE-2026-107735","ts":1792022820655,"field":"exploit_available","old":"false","new":"true"},{"seq":220585,"id":"CVE-2026-107735","ts":1792022820655,"field":"cvss","old":null,"new":"5.4"},{"seq":220584,"id":"CVE-2026-107735","ts":1792022820655,"field":"severity","old":"none","new":"medium"}]}