PT-2025-37935 · Mozilla+1 · Thunderbird+2

Emma Zühlcke · Published 2025-09-16 · Updated 2025-10-29 · CVE-2025-10534

Positive Technologies (AI Summary)

CVSS v2.0

9.4

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 143 Thunderbird versions prior to 143

Description The software contains a flaw.

Recommendations Update Firefox to version 143 or later. Update Thunderbird to version 143 or later.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

ALT-PU-2025-12559

ALT-PU-2025-12562

BDU:2025-11332

CVE-2025-10534

OPENSUSE-SU-2025:15565-1

Affected Products

Alt Linux

Firefox

Thunderbird

References · 31

• https://wiki.astralinux.ru/astra-linux-se47-bulletin-2025-1216SE135 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-10534 · Security Note
• https://bdu.fstec.ru/vul/2025-11332 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-10534 · Security Note
• https://mozilla.org/security/advisories/mfsa2025-77 · Vendor Advisory
• https://mozilla.org/en-US/security/advisories/mfsa2025-73/#CVE-2025-10534 · Vendor Advisory
• https://mozilla.org/security/advisories/mfsa2025-73 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2025:15565-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-10534 · Vendor Advisory
• https://mozilla.org/en-US/security/advisories/mfsa2025-77 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se16-bulletin-20251225SE16 · Vendor Advisory
• https://mozilla.org/en-US/security/advisories/mfsa2025-73 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-10534 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se18-bulletin-2025-1113SE18 · Vendor Advisory
• https://safe-surf.ru/specialists/bulletins-nkcki/724699 · Security Note