AUGUST 4, 2026
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Case File

CVE-2022-1520

MEDIUM · CVSS 4.3 EPSS 0.27%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-12-22 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 4.3. See the original NVD description below for full technical details.

CVE
CVE-2022-1520
Severity
MEDIUM
CVSS
4.3
EPSS
0.27%

Original NVD Description

When viewing an email message A, which contains an attached message B, where B is encrypted or digitally signed or both, Thunderbird may show an incorrect encryption or signature status. After opening and viewing the attached message B, when returning to the display of message A, the message A might be shown with the security status of message B. This vulnerability affects Thunderbird < 91.9.

Related CVEs

Other vulnerabilities affecting the same vendor(s)