{"id":"CVE-2026-70351","aliases":["EUVD-2026-73078","GHSA-j24m-jgmw-jc5f"],"status":"published","title":"Microsoft WebP Image Extension Remote Code Execution Vulnerability","description":"Integer overflow or wraparound in Microsoft WebP Image Extension allows an unauthorized attacker to execute code over a network.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00819,"percentile":0.57644,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-122","CWE-190"],"published":"2026-09-08T17:12:19Z","modified":"2026-11-10T21:31:05Z","products":[{"vendor":"microsoft","product":"webp image extension"},{"vendor":"microsoft","product":"webp_image_extension"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70351","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-70351"},{"url":"https://github.com/advisories/GHSA-j24m-jgmw-jc5f"}],"sources":{"cve":[{"id":"CVE-2026-70351","title":"Microsoft WebP Image Extension Remote Code Execution Vulnerability","description":"Integer overflow or wraparound in Microsoft WebP Image Extension allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-09-08T17:12:19.62Z","modified":"2026-11-10T21:31:05.587Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-190","CWE-122"],"updated_at":"2026-11-10T22:48:53.557052Z"}],"euvd":[{"id":"EUVD-2026-73078","description":"Integer overflow or wraparound in Microsoft WebP Image Extension allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-09-08T17:12:19Z","modified":"2026-11-10T21:31:05Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-10T22:23:53.008995Z"}],"ghsa":[{"id":"GHSA-j24m-jgmw-jc5f","title":"Integer overflow or wraparound in Microsoft WebP Image Extension allows an unauthorized attacker...","description":"Integer overflow or wraparound in Microsoft WebP Image Extension allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-09-08T18:33:06Z","modified":"2026-09-08T18:33:30Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T15:11:32.915208Z"}],"nvd":[{"id":"CVE-2026-70351","description":"Integer overflow or wraparound in Microsoft WebP Image Extension allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-09-08T18:20:08.237Z","modified":"2026-09-29T19:47:02.153Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-122","CWE-190"],"updated_at":"2026-11-02T14:12:44.840742Z"}]}}