{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-1932", "assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "state": "PUBLISHED", "assignerShortName": "mozilla", "dateReserved": "2025-03-04T12:29:29.294Z", "datePublished": "2025-03-04T13:31:23.551Z", "dateUpdated": "2026-04-13T14:27:35.026Z"}, "containers": {"cna": {"affected": [{"product": "Firefox", "vendor": "Mozilla", "versions": [{"status": "unaffected", "version": "128.8", "lessThanOrEqual": "128.*", "versionType": "rpm"}, {"status": "unaffected", "version": "136", "lessThanOrEqual": "*", "versionType": "rpm"}]}, {"product": "Thunderbird", "vendor": "Mozilla", "versions": [{"status": "unaffected", "version": "128.8", "lessThanOrEqual": "128.*", "versionType": "rpm"}, {"status": "unaffected", "version": "136", "lessThanOrEqual": "*", "versionType": "rpm"}]}], "descriptions": [{"lang": "en", "value": "An inconsistent comparator in xslt/txNodeSorter could have resulted in potentially exploitable out-of-bounds access. Only affected version 122 and later. This vulnerability was fixed in Firefox 136, Firefox ESR 128.8, Thunderbird 136, and Thunderbird 128.8.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "An inconsistent comparator in xslt/txNodeSorter could have resulted in potentially exploitable out-of-bounds access. Only affected version 122 and later. This vulnerability was fixed in Firefox 136, Firefox ESR 128.8, Thunderbird 136, and Thunderbird 128.8."}]}], "title": "Inconsistent comparator in XSLT sorting led to out-of-bounds access", "references": [{"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1944313"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2025-14/"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2025-16/"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2025-17/"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2025-18/"}], "credits": [{"lang": "en", "value": "Ivan Fratric of Google Project Zero"}], "providerMetadata": {"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "shortName": "mozilla", "dateUpdated": "2026-04-13T14:27:35.026Z"}}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-125", "lang": "en", "description": "CWE-125 Out-of-bounds Read"}]}], "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2025-03-04T16:05:35.523357Z", "id": "CVE-2025-1932", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-03-25T13:32:36.454Z"}}, {"title": "CVE Program Container", "references": [{"url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00006.html"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T20:57:16.609Z"}}]}}

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Only affected version 122 and later. This vulnerability affects Firefox < 136, Firefox ESR < 128.8, Thunderbird < 136, and Thunderbird < 128.8.", "A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: An inconsistent comparator in xslt/txNodeSorter could have resulted in potentially exploitable out-of-bounds access."], "name": "CVE-2025-1932", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "firefox-flatpak-container", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "firefox-flatpak-container", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-03-04T13:31:23Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-1932\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-1932\nhttps://bugzilla.mozilla.org/show_bug.cgi?id=1944313\nhttps://www.mozilla.org/security/advisories/mfsa2025-14/\nhttps://www.mozilla.org/security/advisories/mfsa2025-16/"], "statement": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "threat_severity": "Important"}

{"analysis": {"en": {"generated_at": "2026-04-20T23:41:53.470676+00:00", "value": {"mitigation_remediation": ["Upgrade Firefox and Thunderbird to the latest stable releases (Firefox \u2265136, ESR \u2265128.8; Thunderbird \u2265136, ESR \u2265128.8) on all user and server systems.", "If an immediate update is not possible, disable or restrict XSLT processing in any application that handles untrusted input until the patch is deployed, to mitigate the possibility of exploiting the out\u2011of\u2011bounds read.", "Continuously monitor Mozilla security advisories for updates and apply any subsequent patches or hotfixes as soon as they become available."], "summary": {"action": "Immediate Patch", "impact": "Potential out-of-bounds memory access"}, "threat_synthesis": {"affected_systems": "Affected installations are Mozilla Firefox versions 122 through 135 and the corresponding ESR builds below 128.8, as well as Mozilla Thunderbird versions 122 through 135 and its ESR releases below 128.8. Versions 136 and newer, or ESR 128.8 and newer, contain the patch that replaces the flawed comparator logic with a safe implementation.", "description_and_impact": "An inconsistent comparator in the Firefox XSLT sorter component (xslt/txNodeSorter) can cause an out\u2011of\u2011bounds read when processing certain XSLT files. The weakness is a classic out\u2011of\u2011bounds memory read (CWE\u2011125) that may lead to memory corruption or crash, potentially enabling further exploitation. Firefox and Thunderbird use the same XSLT engine, so the issue applies to both products.", "risk_and_exploitability": "The vulnerability scores a CVSS base of 8.1, indicating a high\u2011severity issue with substantial impact. The EPSS score is reported as less than 1%, suggesting that widespread exploitation is currently unlikely. The issue is not listed in the CISA KEV catalog, which further indicates that it has not been observed in the wild in large\u2011scale attacks. The likely attack vector involves an attacker supplying a malicious XSLT file or payload that triggers the sorting routine. Given the low EPSS and absence of public exploitation, organizations should promptly update or restrict XSLT usage until the patch is applied."}}}}, "created": "2026-04-20T23:45:21.607688+00:00", "updated": "2026-04-20T23:45:21.607698+00:00", "vendors": []}