PulseLinuxLINUX UPDATE INTELLIGENCE
CVE Database›Document archive›CVE-2022-39249

CVE-2022-39249

Mozilla: Matrix SDK bundled with Thunderbird vulnerable to an impersonation attack by malicious server administrators

Loading…

Severity

Important

Red Hat Product Security

7.5

CVSS 3.1

Review impact separately from score.

Published · September 28, 2022

Updated · June 26, 2026

Description

A flaw was found in Mozilla. According to the Mozilla Foundation Security Advisory, Thunderbird users who use the Matrix chat protocol are vulnerable to an impersonation attack. A malicious server administrator could fake encrypted messages to look as if they were sent from another user on that server.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CWE-347 · Improper Verification of Cryptographic Signature