CVE-2022-26485

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We have had reports of attacks in the wild abusing this flaw. This vulnerability affects Firefox < 97.0.2, Firefox ESR < 91.6.1, Firefox for Android < 97.3.0, Thunderbird < 91.6.2, and Focus < 97.3.0."}, {"lang": "es", "value": "La eliminaci\u00f3n de un par\u00e1metro XSLT durante el procesamiento podr\u00eda haber dado lugar a un use-after-free explotable. Hemos recibido informes de ataques en la naturaleza que abusan de esta falla. Esta vulnerabilidad afecta a Firefox &lt; 97.0.2, Firefox ESR &lt; 91.6.1, Firefox para Android &lt; 97.3.0, Thunderbird &lt; 91.6.2 y Focus &lt; 97.3.0."}], "id": "CVE-2022-26485", "lastModified": "2026-08-19T15:29:21.807", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2022-26485", "options": [{"exploitation": "active"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2025-01-28T21:32:55.676135Z", "version": "2.0.3"}}]}, "published": "2022-12-22T20:15:22.563", "references": [{"source": "security@mozilla.org", "tags": ["Exploit", "Issue Tracking", "Vendor Advisory"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1758062"}, {"source": "security@mozilla.org", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2022-09/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Issue Tracking", "Vendor Advisory"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1758062"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2022-09/"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["US Government Resource"], "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-26485"}], "sourceIdentifier": "security@mozilla.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-416"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"acknowledgement": "Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Wang Gang, Liu Jialei, Du Sihang, Huang Yi & Yang Kang of 360 ATA as the original reporter.", "affected_release": [{"advisory": "RHSA-2022:0824", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "firefox-0:91.7.0-3.el7_9", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2022-03-10T00:00:00Z"}, {"advisory": "RHSA-2022:0850", "cpe": "cpe:/o:redhat:enterprise_linux:7", "impact": "important", "package": "thunderbird-0:91.7.0-2.el7_9", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2022-03-14T00:00:00Z"}, {"advisory": "RHSA-2022:0818", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "firefox-0:91.7.0-3.el8_5", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2022-03-10T00:00:00Z"}, {"advisory": "RHSA-2022:0845", "cpe": "cpe:/a:redhat:enterprise_linux:8", "impact": "important", "package": "thunderbird-0:91.7.0-2.el8_5", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2022-03-14T00:00:00Z"}, {"advisory": "RHSA-2022:0815", "cpe": "cpe:/a:redhat:rhel_e4s:8.1", "package": "firefox-0:91.7.0-3.el8_1", "product_name": "Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions", "release_date": "2022-03-10T00:00:00Z"}, {"advisory": "RHSA-2022:0847", "cpe": "cpe:/a:redhat:rhel_e4s:8.1", "package": "thunderbird-0:91.7.0-2.el8_1", "product_name": "Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions", "release_date": "2022-03-14T00:00:00Z"}, {"advisory": "RHSA-2022:0816", "cpe": "cpe:/a:redhat:rhel_eus:8.2", "package": "firefox-0:91.7.0-3.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Extended Update Support", "release_date": "2022-03-10T00:00:00Z"}, {"advisory": "RHSA-2022:0843", "cpe": "cpe:/a:redhat:rhel_eus:8.2", "package": "thunderbird-0:91.7.0-2.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Extended Update Support", "release_date": "2022-03-14T00:00:00Z"}, {"advisory": "RHSA-2022:0817", "cpe": "cpe:/a:redhat:rhel_eus:8.4", "package": "firefox-0:91.7.0-3.el8_4", "product_name": "Red Hat Enterprise Linux 8.4 Extended Update Support", "release_date": "2022-03-10T00:00:00Z"}, {"advisory": "RHSA-2022:0853", "cpe": "cpe:/a:redhat:rhel_eus:8.4", "package": "thunderbird-0:91.7.0-2.el8_4", "product_name": "Red Hat Enterprise Linux 8.4 Extended Update Support", "release_date": "2022-03-14T00:00:00Z"}], "bugzilla": {"description": "Mozilla: Use-after-free in XSLT parameter processing", "id": "2061736", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2061736"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.8", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "status": "verified"}, "cwe": "CWE-416", "details": ["Removing an XSLT parameter during processing could have lead to an exploitable use-after-free. We have had reports of attacks in the wild abusing this flaw. This vulnerability affects Firefox < 97.0.2, Firefox ESR < 91.6.1, Firefox for Android < 97.3.0, Thunderbird < 91.6.2, and Focus < 97.3.0.", "A flaw was found in Mozilla. The Mozilla Foundation Security Advisory describes this flaw as: Removing an XSLT parameter during processing could have led to an exploitable use-after-free issue. There were reports of attacks in the wild abusing this flaw."], "name": "CVE-2022-26485", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Affected", "impact": "important", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "firefox:flatpak/firefox", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "impact": "important", "package_name": "thunderbird:flatpak/thunderbird", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2022-03-05T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-26485\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-26485\nhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog"], "threat_severity": "Critical"}

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