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CVE-2022-1520

Date: December 21, 2022

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.

Severity Score

Related Resources (7)

https://access.redhat.com/security/cve/CVE-2022-1520
https://bugzilla.mozilla.org/show_bug.cgi?id=1745019
https://people.canonical.com/~ubuntu-security/cve/CVE-2022-1520
https://www.mozilla.org/security/advisories/mfsa2022-18/
https://nvd.nist.gov/vuln/detail/CVE-2022-1520
https://security-tracker.debian.org/tracker/CVE-2022-1520
https://www.mend.io/vulnerability-database/CVE-2022-1520

Severity Score

Weakness Type (CWE)

Inadequate Encryption Strength

CWE-326

Origin Validation Error

CWE-346

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): LOW
Availability (A): NONE

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