PT-2025-41903 · Mozilla+9 · Thunderbird+12

Published 2025-10-14 · Updated 2026-04-15 · CVE-2025-11715

Positive Technologies (AI Summary)

CVSS v2.0

10

High

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 144 Firefox ESR versions prior to 140.4 Thunderbird versions prior to 144 Thunderbird ESR versions prior to 140.4

Description The software contains memory safety bugs, some of which demonstrate evidence of memory corruption. It is presumed that, with sufficient effort, these bugs could potentially be exploited to execute arbitrary code.

Recommendations Update Firefox to version 144 or later. Update Firefox ESR to version 140.4 or later. Update Thunderbird to version 144 or later. Update Thunderbird ESR to version 140.4 or later.

Fix

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

ALSA-2025:18154

ALSA-2025:18155

ALSA-2025:18285

ALSA-2025:18320

ALSA-2025:18321

ALSA-2025:18983

ALT-PU-2025-13161

ALT-PU-2025-13476

ALT-PU-2025-13478

ALT-PU-2025-14599

BDU:2025-13249

CESA-2025_18285

CESA-2025_18983

CVE-2025-11715

DLA-4335-1

DLA-4351-1

DSA-6025-1

DSA-6040-1

INFSA-2025_18155

INFSA-2025_18285

INFSA-2025_18321

INFSA-2025_18983

MGASA-2025-0246

MGASA-2025-0247

OESA-2025-2476

OESA-2025-2477

OESA-2025-2478

OESA-2025-2519

OESA-2025-2557

OESA-2025-2596

OPENSUSE-SU-2025:15632-1

OPENSUSE-SU-2025:15645-1

OPENSUSE-SU-2025:15646-1

OPENSUSE-SU-2025:20026-1

OPENSUSE-SU-2025:20065-1

RHSA-2025_18155

RHSA-2025_18285

RHSA-2025_18321

RHSA-2025_18983

SUSE-SU-2025:21021-1

SUSE-SU-2025:3775-1

SUSE-SU-2025:3808-1

SUSE-SU-2025:4006-1

SUSE-SU-2025:4173-1

SUSE-SU-2025:4174-1

USN-7991-1

Affected Products

Alt Linux

Almalinux

Centos

Debian

Firefox

Firefox Esr

Linuxmint

Red Hat

Rocky Linux

Suse

Thunderbird

Thunderbird Esr

Ubuntu

References · 313

• https://ubuntu.com/security/CVE-2026-0887 · Vendor Advisory
• https://mozilla.org/en-US/security/advisories/mfsa2025-81/#CVE-2025-11715 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se47-bulletin-2025-1216SE163 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-10533 · Security Note
• https://ubuntu.com/security/CVE-2026-0891 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-14328 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2025-2477 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-11715 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-8038 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-13249 · Security Note
• https://ubuntu.com/security/CVE-2025-6434 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-0243 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-6435 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-5283 · Vendor Advisory
• https://mozilla.org/security/advisories/mfsa2025-81 · Vendor Advisory