CVE-2023-37464 is a high-severity vulnerability in the OpenIDC/cjose C library, specifically affecting its AES GCM decryption routine. The library incorrectly uses the provided Authentication Tag's length instead of a fixed 16-octet length, allowing attackers to truncate the tag and modify JSON Web Encryption (JWE) data. This vulnerability has a CVSS score of 7.5, indicating a network-based attack with low complexity and high impact on integrity, but no impact on confidentiality or availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 0.6.2.2CPE matchmatch criteria | cpe:2.3:a:cisco:cjose:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
No social media mentions found for this CVE.
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.
Incorrect Authentication Tag length usage in AES GCM decryption in OpenIDC/cjose
Aug 12, 2025cjose: AES GCM decryption uses the Tag length from the actual Authentication Tag provided in the JWE
Jul 14, 2023Incorrect Authentication Tag length usage in AES GCM decryption in OpenIDC/cjose
Jul 11, 2023