CVE-2021-40530 describes a plaintext recovery vulnerability in the ElGamal implementation of Crypto++ through version 8.5, affecting Crypto++ and Fedora distributions. This medium-severity vulnerability (CVSS 5.9) allows an unauthenticated attacker to recover plaintext due to a dangerous combination of cryptographic parameters during inter-library communication, specifically targeting OpenPGP. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this flaw.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 8.5CPE matchmatch criteria | cpe:2.3:a:cryptopp:crypto\+\+:*:*:*:*:*:*:*:* | ||
33CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* | ||
34CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* | ||
35CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.