PT-2025-10626 · Mozilla+6 · Thunderbird+6

Marcus Brinkmann · Published 2025-02-13 · Updated 2025-07-22 · CVE-2025-26696

Positive Technologies (AI Summary)

CVSS v2.0

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Thunderbird versions prior to 136 Thunderbird versions prior to 128.8

Description The issue arises from certain crafted MIME email messages that claim to contain an encrypted OpenPGP message but actually contain an OpenPGP signed message, which are wrongly shown as being encrypted.

Recommendations For versions prior to 136, update to version 136 or later. For versions prior to 128.8, update to version 128.8 or later.

Fix

UI Misrepresentation of Critical Information

Authentication Bypass by Spoofing

Weakness Enumeration

CWE-451

CWE-290

Related Identifiers

ALT-PU-2025-7695

BDU:2025-02512

CVE-2025-26696

DLA-4081-1

DSA-5876-1

OPENSUSE-SU-2025_0849-1

SUSE-SU-2025:0849-1

USN-7663-1

Affected Products

Alt Linux

Astra Linux

Linuxmint

Red Os

Suse

Thunderbird

Ubuntu

References · 96

• https://ubuntu.com/security/CVE-2025-1935 · Vendor Advisory
• https://mozilla.org/en-US/security/advisories/mfsa2025-18/#CVE-2025-26696 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-5268 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-5986 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-1012 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-3875 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-4919 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-1938 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-1014 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2025-26696 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-5267 · Vendor Advisory
• https://mozilla.org/en-US/security/advisories/mfsa2025-17 · Vendor Advisory
• https://mozilla.org/security/advisories/mfsa2025-18 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-26696 · Security Note
• https://ubuntu.com/security/CVE-2025-5266 · Vendor Advisory