CVE-2021-27343 describes a buffer overflow vulnerability within the SerenityOS operating system, specifically in the Crypto::der_decode_sequence() function of the LibCrypto library. This flaw, triggered by parsing maliciously crafted RSA Key ASN.1 data, has a CVSS score of 7.5 (High) due to its network-based attack vector and low attack complexity, potentially allowing an unauthenticated attacker to obtain sensitive information. While the vulnerability carries a significant risk score, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or notable community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:serenityos:serenityos:-:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/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, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.