CVE-2026-22791 — Incorrect Calculation of Buffer Size in Opencryptoki
Severity
6.1MEDIUMNVD
CNA6.6
EPSS
0.0%
top 95.76%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedJan 13
Description
openCryptoki is a PKCS#11 library and tools for Linux and AIX. In 3.25.0 and 3.26.0, there is a heap buffer overflow vulnerability in the CKM_ECDH_AES_KEY_WRAP implementation allows an attacker with local access to cause out-of-bounds writes in the host process by supplying a compressed EC public key and invoking C_WrapKey. This can lead to heap corruption, or denial-of-service.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:HExploitability: 1.8 | Impact: 4.2