{"id":"CVE-2026-92036","title":"Incorrect boundary conditions in the Networking: HTTP component","summary":"Incorrect boundary conditions in the Networking: HTTP component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-119","CWE-787"],"vendor":"Mozilla","product":"Firefox","affected":["Firefox","Thunderbird"],"published":"2026-09-15","updated":"2026-09-21","sourceUpdated":"2026-09-21T18:17:12.113","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-92036","references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2068416","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-90/","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-94/","label":"security@mozilla.org"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-92036.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-92036"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2533795"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-92036"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-92036"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-90/#CVE-2026-92036"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-94/#CVE-2026-92036"}],"tags":["nvd","cve.org","csaf","vex","red-hat","score-dispute"],"epss":0.0015,"epssPercentile":0.04569,"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"total","timestamp":"2026-09-21T17:17:37.610287Z"},"scores":{"nvd":9.8,"vendor":7.5,"adp":9.8},"ingestedAt":"2026-09-15T12:36:50.188Z","slug":"CVE-2026-92036","body":"## Overview\n\nIncorrect boundary conditions in the Networking: HTTP component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Important · updated 2026-09-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-92036.json)","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":53.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":208656,"id":"CVE-2026-92036","ts":1790016691848,"field":"cvss","old":"7.5","new":"9.8"},{"seq":208655,"id":"CVE-2026-92036","ts":1790016691848,"field":"severity","old":"high","new":"critical"},{"seq":206301,"id":"CVE-2026-92036","ts":1789663193679,"field":"cvss","old":null,"new":"7.5"},{"seq":206300,"id":"CVE-2026-92036","ts":1789663193679,"field":"severity","old":"none","new":"high"}]}