by Kastro
Paper/Archive/CVE-2025-11710

CVE-2025-11710

Mozilla Firefox — Cross-process information leaked due to malicious IPC messages

EPSS 0.4%CVSS 9.8
critical.is priorityof 100
37
CVSS 9.8 (ADP)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 36.6.366 × 207.3No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
Firefoxsee advisory115.29CNA
Thunderbirdsee advisory140.4CNA

Scores by source

CISA ADP9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refbugzilla.mozilla.org/show_bug.cgi?id=1989899refmozilla.org/security/advisories/mfsa2025-81refmozilla.org/security/advisories/mfsa2025-82refmozilla.org/security/advisories/mfsa2025-83refmozilla.org/security/advisories/mfsa2025-84refmozilla.org/security/advisories/mfsa2025-85reflists.debian.org/debian-lts-announce/2025/10/msg00031.htmlreflists.debian.org/debian-lts-announce/2025/10/msg00015.html