CVE-2025-11710

// CVE-2025-11710 PoC - Conceptual demonstration // Note: This vulnerability requires a compromised web process to exploit. // The following is a conceptual outline of the exploit chain. // Step 1: First, gain code execution in the web/content process // This typically requires another vulnerability (e.g., a JS engine bug) // For demonstration purposes, assume we already have arbitrary read/write // in the content process. // Step 2: Craft malicious IPC message to the privileged browser process // The IPC message exploits the vulnerability in the browser process's // message handler, causing it to return memory contents. function exploitCVE_2025_11710() { // The IPC mechanism in Firefox uses Mozilla's IPC framework // Messages are sent via the IPDL (IPC Protocol Description Language) // Craft a malicious IPC message targeting the vulnerable handler // The handler fails to properly validate the request, leading to // out-of-bounds memory read in the privileged process const ipcMessage = { // Target the specific IPC endpoint that handles the vulnerable code path protocol: "chrome", // Target chrome/privileged process message: { // Malicious payload that triggers memory disclosure type: "PBrowser", // Browser process message type action: "malicious_action", params: { // Crafted parameters to trigger memory leak offset: 0, // Read offset length: 0x1000, // Read length - triggers OOB read } } }; // Send the malicious IPC message // The privileged browser process will respond with memory contents // due to the vulnerability // In a real exploit, this would use Firefox's internal IPC APIs // such as ContentChild::SendXxx() or similar methods console.log("Exploit concept for CVE-2025-11710"); console.log("Requires: Code execution in content process + IPC access"); console.log( "Impact: Memory disclosure from privileged browser process" ); return ipcMessage; } // Note: A working PoC requires deep knowledge of Firefox's IPC internals // and typically chains with another vulnerability for initial access. // Mozilla bug tracker: https://bugzilla.mozilla.org/show_bug.cgi?id=1989899

{"cve": {"id": "CVE-2025-11710", "sourceIdentifier": "[email protected]", "published": "2025-10-14T13:15:37.203", "lastModified": "2026-04-13T15:16:39.603", "vulnStatus": "Modified", "cveTags": [], "descriptions": [{"lang": "en", "value": "A compromised web process using malicious IPC messages could have caused the privileged browser process to reveal blocks of its memory to the compromised process. This vulnerability was fixed in Firefox 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 5.9}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-200"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*", "versionEndExcluding": "115.29.0", "matchCriteriaId": "45205EB8-E615-4FE6-877C-231B4A29F86E"}, {"vulnerable": true, "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*", "versionEndExcluding": "144.0", "matchCriteriaId": "CEE2F6DA-4331-4D6D-B01B-610DFDBE1833"}, {"vulnerable": true, "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*", "versionStartIncluding": "116.0", "versionEndExcluding": "140.4.0", "matchCriteriaId": "34B8F1CA-9F1A-4484-828E-4192CF1FEAFC"}, {"vulnerable": true, "criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*", "versionEndExcluding": "140.4.0", "matchCriteriaId": "7C6D96D2-1E0E-4A18-B8B1-21F67E1AB441"}, {"vulnerable": true, "criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*", "versionStartIncluding": "141.0", "versionEndExcluding": "144.0", "matchCriteriaId": "0BD75942-93B9-47A4-9762-05965EBD7FFF"}]}]}], "references": [{"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1989899", "source": "[email protected]", "tags": ["Issue Tracking", "Permissions Required"]}, {"url": "https://www.mozilla.org/security/advisories/mfsa2025-81/", "source": "[email protected]", "tags": ["Vendor Advisory"]}, {"url": "https://www.mozilla.org/security/advisories/mfsa2025-82/", "source": "[email protected]", "tags": ["Vendor Advisory"]}, {"url": "https://www.mozilla.org/security/advisories/mfsa2025-83/", "source": "[email protected]", "tags": ["Vendor Advisory"]}, {"url": "https://www.mozilla.org/security/advisories/mfsa2025-84/", "source": "[email protected]", "tags": ["Vendor Advisory"]}, {"url": "https://www.mozilla.org/security/advisories/mfsa2025-85/", "source": "[email protected]", "tags": ["Vendor Advisory"]}, {"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00015.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00031.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}]}}