CVE-2026-2100

| EUVD-2026-16336 MEDIUM
2026-03-26 redhat GHSA-hq85-3f6c-jx84
5.3
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

Lifecycle Timeline

4
Patch Released
Mar 31, 2026 - 21:13 nvd
Patch available
Analysis Generated
Mar 26, 2026 - 20:31 vuln.today
EUVD ID Assigned
Mar 26, 2026 - 20:31 euvd
EUVD-2026-16336
CVE Published
Mar 26, 2026 - 20:01 nvd
MEDIUM 5.3

Tags

IBM Denial Of Service Memory Corruption

Description

A flaw was found in p11-kit. A remote attacker could exploit this vulnerability by calling the C_DeriveKey function on a remote token with specific IBM kyber or IBM btc derive mechanism parameters set to NULL. This could lead to the RPC-client attempting to return an uninitialized value, potentially resulting in a NULL dereference or undefined behavior. This issue may cause an application level denial of service or other unpredictable system states.

Analysis

p11-kit remote token handling fails to validate NULL derive mechanism parameters in C_DeriveKey operations, allowing unauthenticated remote attackers to trigger NULL pointer dereferences and undefined memory access in the RPC client layer. This denial-of-service vulnerability affects Red Hat Enterprise Linux versions 6 through 10 and OpenShift Container Platform 4, with a CVSS score of 5.3 reflecting moderate availability impact. …

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Remediation

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

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Priority Score

27
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +26
POC: 0

Vendor Status

Ubuntu

Priority: Medium
p11-kit
Release Status Version
bionic not-affected code not present
focal not-affected code not present
jammy not-affected code not present
noble not-affected code not present
questing not-affected code not present
trusty not-affected code not present
upstream released 0.26.2-1
xenial not-affected code not present

Debian

p11-kit
Release Status Fixed Version Urgency
bullseye not-affected - -
bookworm not-affected - -
trixie not-affected - -
forky, sid fixed 0.26.2-2 -
experimental fixed 0.26.2-1 -
(unstable) fixed 0.26.2-2 -

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CVE-2026-2100 vulnerability details – vuln.today
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