Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

Go to Calendar     Go to Press Room     Go to Newsletters subscription

Search

CVE-2025-26696

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
10/03/2025
Last modified:
13/04/2026

Description

Certain crafted MIME email messages that claimed to contain an encrypted OpenPGP message, which instead contained an OpenPGP signed message, were wrongly shown as being encrypted. This vulnerability was fixed in Thunderbird 136 and Thunderbird 128.8.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L CVSS v3.1 Severity and Metrics:

Base Score: 7.00 HIGH
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): Low
Availability (A): Low

Base Score 3.x
7.00
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* 128.8.0 (excluding)
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* 129.0 (including) 136.0 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools