CVE-2026-16360

{"id": "CVE-2026-16360", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-16360", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-07-23T00:00:00+00:00"}}], "cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "affected": [{"source": "security@mozilla.org", "affectedData": [{"vendor": "Mozilla", "product": "Firefox", "versions": [{"status": "unaffected", "version": "115.38", "versionType": "rpm", "lessThanOrEqual": "115.*"}, {"status": "unaffected", "version": "140.13", "versionType": "rpm", "lessThanOrEqual": "140.*"}, {"status": "unaffected", "version": "153", "versionType": "rpm", "lessThanOrEqual": "*"}]}, {"vendor": "Mozilla", "product": "Thunderbird", "versions": [{"status": "unaffected", "version": "140.13", "versionType": "rpm", "lessThanOrEqual": "140.*"}, {"status": "unaffected", "version": "153", "versionType": "rpm", "lessThanOrEqual": "*"}]}]}], "published": "2026-07-21T13:17:04.517", "references": [{"url": "https://bugzilla.mozilla.org/buglist.cgi?bug_id=2022635%2C2028004%2C2035756%2C2045184%2C2045185%2C2045198%2C2045392%2C2045395%2C2045396%2C2045397%2C2045405%2C2045414%2C2045415%2C2045451%2C2045454%2C2045508%2C2045510%2C2045513%2C2045515%2C2045518%2C2045604%2C2045607%2C2045612%2C2045617%2C2045619%2C2045624%2C2045625%2C2045729%2C2045737%2C2045741%2C2045742%2C2045763%2C2045767%2C2045770%2C2045772%2C2045773%2C2045783%2C2045833%2C2045848%2C2045865%2C2045875%2C2045957%2C2047723%2C2047729%2C2048795%2C2048799%2C2048801%2C2049392%2C2049397%2C2049398%2C2049399%2C2049404%2C2049405%2C2049407%2C2049812%2C2050657%2C2050668%2C2050990%2C2053166%2C2053273%2C2053576%2C2053583%2C2053587", "tags": ["Broken Link"], "source": "security@mozilla.org"}, {"url": "https://bugzilla.mozilla.org/buglist.cgi?bug_id=2043739%2C2045281%2C2045614%2C2045744%2C2045775%2C2047719%2C2049805%2C2051666", "tags": ["Permissions Required"], "source": "security@mozilla.org"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2026-68/", "tags": ["Vendor Advisory"], "source": "security@mozilla.org"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2026-69/", "tags": ["Vendor Advisory"], "source": "security@mozilla.org"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2026-70/", "tags": ["Vendor Advisory"], "source": "security@mozilla.org"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2026-71/", "tags": ["Vendor Advisory"], "source": "security@mozilla.org"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2026-72/", "tags": ["Vendor Advisory"], "source": "security@mozilla.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-119"}]}], "descriptions": [{"lang": "en", "value": "Memory safety bugs present in Firefox ESR 115.37, Firefox ESR 140.12 and Firefox 152. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13."}], "lastModified": "2026-07-24T15:07:50.113", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*", "vulnerable": true, "matchCriteriaId": "D9407046-1F52-4289-9A12-2A4730295A9F", "versionEndExcluding": "115.38.0"}, {"criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*", "vulnerable": true, "matchCriteriaId": "5DB4AF59-87C2-4FC4-896D-02879D6F8E6B", "versionEndExcluding": "153.0.0"}, {"criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*", "vulnerable": true, "matchCriteriaId": "E5063988-0B86-4C26-8676-E98376899B70", "versionEndExcluding": "140.13.0", "versionStartIncluding": "128.1.0"}, {"criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9F5CEA4A-31D8-46F6-B259-0DFF56BD8F1D", "versionEndExcluding": "140.13.0"}, {"criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B9C46740-CFEC-4FBB-8461-46E26518EE59", "versionEndExcluding": "153.0", "versionStartIncluding": "141.0"}], "operator": "OR"}]}], "sourceIdentifier": "security@mozilla.org"}