Vulnerability in Gnupg Libgcrypt
CVE-2021-40528
The ElGamal implementation in Libgcrypt before 1.9.4 allows plaintext recovery because, during interaction between two cryptographic libraries, a certain dangerous combination of the prime defined by the receiver's public key, the generato…
Vulnerability class: POODLE (CVE-2014-3566)
EPSS: 0.014 (69.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Gnupg Libgcrypt
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Technical Description, Third Party Advisory)
- cve@mitre.org (Third Party Advisory)
- cve@mitre.org (Exploit, Third Party Advisory)
- cve@mitre.org
- cve@mitre.org (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-40528?
- CVE-2021-40528 is a medium-severity vulnerability in Gnupg Libgcrypt, classified under Use of a Broken or Risky Cryptographic Algorithm. CVSS score: 5.9/10. Published 2021-09-06.
- How severe is CVE-2021-40528?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2021-40528 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.