CVE-2025-11710

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{"bugzilla": {"description": "thunderbird: firefox: Cross-process information leaked due to malicious IPC messages", "id": "2403768", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2403768"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-497", "details": ["No description is available for this CVE."], "name": "CVE-2025-11710", "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": "rhel10/firefox-flatpak", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "rhel10/thunderbird-flatpak", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "thunderbird", "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:6", "fix_state": "Out of support scope", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-10-14T12:27:34Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-11710\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-11710\nhttps://www.mozilla.org/security/advisories/mfsa2025-83/#CVE-2025-11710\nhttps://www.mozilla.org/security/advisories/mfsa2025-85/#CVE-2025-11710"], "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": "2026-04-20T19:14:31.957805+00:00", "value": {"mitigation_remediation": ["Upgrade Mozilla Firefox to version 144 or newer, including ESR 140.4 and later releases.", "Upgrade Mozilla Thunderbird to version 144 or newer, including ESR 140.4 and later releases.", "Remove older unpatched browser and email client versions from the systems."], "summary": {"action": "Immediate Patch", "impact": "Information Disclosure via IPC"}, "threat_synthesis": {"affected_systems": "The vulnerability affects Mozilla\u2019s products: Firefox (including standard and ESR releases) and Thunderbird. Versions vulnerable are Firefox 144, Firefox ESR 115.29, and Firefox ESR 140.4, as well as Thunderbird 144 and Thunderbird 140.4.", "description_and_impact": "A compromised web process can send malicious IPC messages that cause the privileged browser or email client process to unintentionally expose blocks of its memory to the attacker. This results in a confidential data breach where sensitive information residing in the main process becomes visible to the malicious process, violating the principle of least privilege. The flaw is a classic confidentiality weakness, classified as CWE-200 and related to improper handling of IPC messages (CWE-497).", "risk_and_exploitability": "The CVSS score of 9.8 marks this flaw as critical, and the EPSS score of less than 1% indicates a low likelihood of exploitation at this time. The vulnerability is not listed in the CISA KEV catalog. The attack vector appears to be local or user\u2011attributed: a malicious web process, potentially originating from compromised or malicious web content, leverages inter\u2011process communication protocols to trigger the memory\u2011leak scenario. Attacks would require the attacker to exploit an in\u2011browser context or the user's local environment to gain initial access to the web process."}}}}, "created": "2025-10-20T15:49:38.340504+00:00", "updated": "2026-04-20T19:15:15.052897+00:00", "vendors": ["mozilla", "mozilla$PRODUCT$firefox", "mozilla$PRODUCT$firefox_esr", "mozilla$PRODUCT$thunderbird"]}