CVE-2025-26696

HIGH
2025-03-10 [email protected]
7.0
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
Low

Lifecycle Timeline

3
Patch Released
Mar 31, 2026 - 21:13 nvd
Patch available
Analysis Generated
Mar 12, 2026 - 19:50 vuln.today
CVE Published
Mar 10, 2025 - 19:15 nvd
HIGH 7.0

Tags

Mozilla Authentication Bypass Redhat Suse Thunderbird

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 affects Thunderbird < 136 and Thunderbird < 128.8.

Analysis

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 affects Thunderbird < 136 and Thunderbird < 128.8. [CVSS 7.0 HIGH]

Technical Context

Classified as CWE-290 (Authentication Bypass by Spoofing). 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 affects Thunderbird < 136 and Thunderbird < 128.8.

Affected Products

Certain crafted MIME email messages that claimed to contain an encrypted OpenPGP message, which instead contained an OpenPGP signed message, were wron

Remediation

Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.

Priority Score

35
Low Medium High Critical
KEV: 0
EPSS: +0.2
CVSS: +35
POC: 0

Vendor Status

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CVE-2025-26696 vulnerability details – vuln.today
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