CVE-2025-11710A compromised web process using malicious IPC messages could have caused the privileged browser process to reveal blocks of its memory to the compromised process.
Updated under an hour ago ()
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It affects mozilla firefox and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 9.8 CRITICAL (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-200
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Modified
- Record last updated
- Oct 18, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
mozilla firefox mozilla:firefox | before 115.29.0; before 144.0; from 116.0 before 140.4.0 | NVD |
mozilla thunderbird mozilla:thunderbird | before 140.4.0; from 141.0 before 144.0 | NVD |
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1989899issue-tracking, permissions-required
- https://www.mozilla.org/security/advisories/mfsa2025-81/vendor-advisory
- https://www.mozilla.org/security/advisories/mfsa2025-82/vendor-advisory
- https://www.mozilla.org/security/advisories/mfsa2025-83/vendor-advisory
- https://www.mozilla.org/security/advisories/mfsa2025-84/vendor-advisory
- https://www.mozilla.org/security/advisories/mfsa2025-85/vendor-advisory
- https://lists.debian.org/debian-lts-announce/2025/10/msg00015.html
- https://lists.debian.org/debian-lts-announce/2025/10/msg00031.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.