Detections
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Linux Distros Unpatched Vulnerability : CVE-2026-22791

medium Nessus Plugin ID 284798

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Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

 - 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. (CVE-2026-22791)

Note that Nessus relies on the presence of the package as reported by the vendor.

Solution

There is no known solution at this time.

See Also

https://access.redhat.com/security/cve/cve-2026-22791

https://ubuntu.com/security/CVE-2026-22791

Plugin Details

Severity: Medium

ID: 284798

File Name: unpatched_CVE_2026_22791.nasl

Version: 1.6

Type: local

Agent: unix

Family: Misc.

Published: 1/15/2026

Updated: 2/24/2026

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.0

CVSS v2

Risk Factor: Medium

Base Score: 5.2

Temporal Score: 4.7

Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:P/A:C

CVSS Score Source: CVE-2026-22791

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

Temporal Vector: CVSS:3.0/E:P/RL:U/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:opencryptoki-libs, cpe:/o:canonical:ubuntu_linux:25.10, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:redhat:enterprise_linux:opencryptoki-devel, p-cpe:/a:redhat:enterprise_linux:opencryptoki-icsftok, p-cpe:/a:redhat:enterprise_linux:opencryptoki-swtok, p-cpe:/a:canonical:ubuntu_linux:opencryptoki, p-cpe:/a:redhat:enterprise_linux:opencryptoki-ep11tok, p-cpe:/a:redhat:enterprise_linux:opencryptoki-ccatok, p-cpe:/a:redhat:enterprise_linux:opencryptoki-icatok, p-cpe:/a:redhat:enterprise_linux:opencryptoki, cpe:/o:redhat:enterprise_linux:10

Required KB Items: Host/cpu, Host/local_checks_enabled, global_settings/vendor_unpatched, Host/OS/identifier

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 1/13/2026

Reference Information

CVE: CVE-2026-22791