CVE-2021-23991
Expert Analysis
Professional remediation guidance
Get tailored security recommendations from our analyst team for CVE-2021-23991. We'll provide specific mitigation strategies based on your environment and risk profile.
Description
If a Thunderbird user has previously imported Alice's OpenPGP key, and Alice has extended the validity period of her key, but Alice's updated key has not yet been imported, an attacker may send an email containing a crafted version of Alice's key with an invalid subkey, Thunderbird might subsequently attempt to use the invalid subkey, and will fail to send encrypted email to Alice. This vulnerability affects Thunderbird < 78.9.1.
Available Exploits
Related News
Affected Products
Affected Versions:
GitHub Security Advisories
Community-driven vulnerability intelligence from GitHub
Advisory Details
CVSS Scoring
CVSS Score
References
Advisory provided by GitHub Security Advisory Database. Published: May 24, 2022, Modified: May 24, 2022