CVE-2025-11710
published 2025-10-14CVE-2025-11710: A compromised web process using malicious IPC messages could have caused the privileged browser process to reveal blocks of its memory to the compromised…
PriorityP346critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
0.39%
31.6th percentile
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
13 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | firefox | < firefox 144.0-1 (sid) | firefox 144.0-1 (sid) |
| debian | firefox-esr | < firefox 144.0-1 (sid) | firefox 144.0-1 (sid) |
| debian | thunderbird | < firefox 144.0-1 (sid) | firefox 144.0-1 (sid) |
| mozilla | firefox | < 115.29.0 | 115.29.0 |
| mozilla | firefox | < 144.0 | 144.0 |
| mozilla | firefox | — | — |
| mozilla | firefox | >= 116.0 < 140.4.0 | 140.4.0 |
| mozilla | thunderbird | < 140.4.0 | 140.4.0 |
| mozilla | thunderbird | >= 0 < 1:140.4.0esr-1~deb11u1 | 1:140.4.0esr-1~deb11u1 |
| mozilla | thunderbird | >= 0 < 1:140.4.0esr-1~deb12u1 | 1:140.4.0esr-1~deb12u1 |
| mozilla | thunderbird | >= 0 < 1:140.4.0esr-1~deb13u1 | 1:140.4.0esr-1~deb13u1 |
| mozilla | thunderbird | >= 0 < 1:140.4.0esr-1 | 1:140.4.0esr-1 |
| mozilla | thunderbird | >= 141.0 < 144.0 | 144.0 |
CVSS provenance
nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
osv9.8CRITICAL
vendor_debian9.8CRITICAL
vendor_redhat9.8CRITICAL
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Ubuntu
Thunderbird vulnerabilities
vendor_ubuntu·2026-02-02
CVE-2025-8031 Thunderbird vulnerabilities
Title: Thunderbird vulnerabilities
Summary: Several security issues were fixed in Thunderbird.
Multiple security issues were discovered in Thunderbird. If a user were
tricked into opening a specially crafted website in a browsing context,
an attacker could potentially exploit these to cause a denial of service,
obtain sensitive information, bypass security restrictions, cross-site
tracing, or execute arbitrary code.
Instructions: In general, a standard system update will make all the necessary changes.
Red Hat
thunderbird: firefox: Cross-process information leaked due to malicious IPC messages
vendor_redhat·2025-10-14·CVSS 9.8
CVE-2025-11710 [CRITICAL] CWE-497 thunderbird: firefox: Cross-process information leaked due to malicious IPC messages
thunderbird: firefox: Cross-process information leaked due to malicious IPC messages
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 affects Firefox < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.
A flaw was found in Thunderbird and Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
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.
Statement: Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.
Package: r
Debian
CVE-2025-11710: firefox - A compromised web process using malicious IPC messages could have caused the pri...
vendor_debian·2025·CVSS 9.8
CVE-2025-11710 [CRITICAL] CVE-2025-11710: firefox - A compromised web process using malicious IPC messages could have caused the pri...
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 affects Firefox < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.
Scope: local
sid: resolved (fixed in 144.0-1)
Mozilla
Mozilla Foundation Security Advisory 2025-81: CVE-2025-11710
vendor_mozilla·CVSS 9.8
CVE-2025-11710 [CRITICAL] Mozilla Foundation Security Advisory 2025-81: CVE-2025-11710
Mozilla Foundation Security Advisory 2025-81
CVE: CVE-2025-11710
Product: Firefox
Impact: high
Fixed in: Firefox 144
Mozilla
Mozilla Foundation Security Advisory 2025-84: CVE-2025-11710
vendor_mozilla·CVSS 9.8
CVE-2025-11710 [CRITICAL] Mozilla Foundation Security Advisory 2025-84: CVE-2025-11710
Mozilla Foundation Security Advisory 2025-84
CVE: CVE-2025-11710
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 144
Mozilla
Mozilla Foundation Security Advisory 2025-85: CVE-2025-11710
vendor_mozilla·CVSS 9.8
CVE-2025-11710 [CRITICAL] Mozilla Foundation Security Advisory 2025-85: CVE-2025-11710
Mozilla Foundation Security Advisory 2025-85
CVE: CVE-2025-11710
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 140.4
Mozilla
Mozilla Foundation Security Advisory 2025-83: CVE-2025-11710
vendor_mozilla·CVSS 9.8
CVE-2025-11710 [CRITICAL] Mozilla Foundation Security Advisory 2025-83: CVE-2025-11710
Mozilla Foundation Security Advisory 2025-83
CVE: CVE-2025-11710
Product: Firefox ESR
Impact: high
Fixed in: Firefox ESR 140.4
Mozilla
Mozilla Foundation Security Advisory 2025-82: CVE-2025-11710
vendor_mozilla·CVSS 9.8
CVE-2025-11710 [CRITICAL] Mozilla Foundation Security Advisory 2025-82: CVE-2025-11710
Mozilla Foundation Security Advisory 2025-82
CVE: CVE-2025-11710
Product: Firefox ESR
Impact: high
Fixed in: Firefox ESR 115.29
OSV
CVE-2025-11710: A compromised web process using malicious IPC messages could have caused the privileged browser process to reveal blocks of its memory to the compromi
osv·2025-10-14·CVSS 9.8
CVE-2025-11710 [CRITICAL] CVE-2025-11710: A compromised web process using malicious IPC messages could have caused the privileged browser process to reveal blocks of its memory to the compromi
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 affects Firefox < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.
GHSA
GHSA-ff52-484q-63r5: A compromised web process using malicious IPC messages could have caused the privileged browser process to reveal blocks of its memory to the compromi
ghsa_unreviewed·2025-10-14
CVE-2025-11710 [CRITICAL] CWE-200 GHSA-ff52-484q-63r5: A compromised web process using malicious IPC messages could have caused the privileged browser process to reveal blocks of its memory to the compromi
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 affects Firefox < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.
No detection rules found.
No public exploits indexed.
https://bugzilla.mozilla.org/show_bug.cgi?id=1989899https://www.mozilla.org/security/advisories/mfsa2025-81/https://www.mozilla.org/security/advisories/mfsa2025-82/https://www.mozilla.org/security/advisories/mfsa2025-83/https://www.mozilla.org/security/advisories/mfsa2025-84/https://www.mozilla.org/security/advisories/mfsa2025-85/https://lists.debian.org/debian-lts-announce/2025/10/msg00015.htmlhttps://lists.debian.org/debian-lts-announce/2025/10/msg00031.html
2025-10-14
Published