PT-2025-26729 · Mozilla+5 · Firefox+5

Albert · Published 2025-06-24 · Updated 2026-02-02 · CVE-2025-6432

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: Firefox versions prior to 140

Description: The issue occurs when Multi-Account Containers is enabled, allowing DNS requests to bypass a SOCKS proxy under certain conditions, such as when the domain name is invalid or the SOCKS proxy is not responding.

Recommendations: For versions prior to 140, update to version 140 or later to resolve the issue. As a temporary workaround, consider disabling Multi-Account Containers until the update is applied. Restrict access to SOCKS proxies to minimize the risk of exploitation. Avoid using invalid domain names in SOCKS proxy configurations until the issue is resolved.

Fix

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

ALT-PU-2025-11100

ALT-PU-2025-11495

ALT-PU-2025-11497

ALT-PU-2025-14599

ALT-PU-2025-8725

ALT-PU-2025-9988

BDU:2025-08992

CVE-2025-6432

OPENSUSE-SU-2025:15325-1

OPENSUSE-SU-2025:15371-1

OPENSUSE-SU-2025:15383-1

SUSE-SU-2025:02339-1

SUSE-SU-2025:02529-1

SUSE-SU-2025:02546-1

SUSE-SU-2025_02339-1

SUSE-SU-2025_02529-1

USN-7991-1

Affected Products

Alt Linux

Astra Linux

Firefox

Linuxmint

Suse

Ubuntu

References · 177

• https://ubuntu.com/security/CVE-2025-13015 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-0887 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-11711 · Vendor Advisory
• https://mozilla.org/security/advisories/mfsa2025-51 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-0891 · Vendor Advisory
• https://mozilla.org/en-US/security/advisories/mfsa2025-54 · Vendor Advisory
• https://mozilla.org/en-US/security/advisories/mfsa2025-51 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-14328 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:02339-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2025:15383-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-8039 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:02529-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-11715 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-8038 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-6434 · Vendor Advisory