Vulnerability in Mozilla Thunderbird
CVE-2021-29950
Thunderbird unprotects a secret OpenPGP key prior to using it for a decryption, signing or key import task. If the task runs into a failure, the secret key may remain in memory in its unprotected state. This vulnerability affects Thunderbird < 78.8.1.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.009 (56.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- Mozilla Thunderbird — versions unspecified
Weakness classification (CWE)
References
- www.mozilla.org/security/advisories/mfsa2021-17/ (Release Notes, Vendor Advisory)
- bugzilla.mozilla.org/show_bug.cgi (Exploit, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-29950?
- CVE-2021-29950 is a high-severity vulnerability in Mozilla Thunderbird, classified under Cleartext Storage of Sensitive Information. CVSS score: 7.5/10. Published 2021-06-24.
- How severe is CVE-2021-29950?
- High severity. CVSS v3 base score is 7.5 out of 10.