Home/CVE/A flaw was found in p11-kit. A remote attacker could exploit this vulnerability by calling the C_DeriveKey function on a
CVE

CVE-2026-2100

A flaw was found in p11-kit. A remote attacker could exploit this vulnerability by calling the C_DeriveKey function on a

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.

MEDIUM · CVSS 5.3 EPSS 0.00093
Schedule remediation
  • SSVC automatable: yes - attacks can be scripted at scale
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-824Access of Uninitialized Pointer
▤

Affected Products & Versions

3
p11-kit project p11-kitall versions
redhat hardened imagesall versions
redhat enterprise linuxall versions
▣

Scoring & Timeline

5.3
MEDIUM · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD26 Mar 2026 · 09:17 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

7
rhsaRHSA-2026:21275Critical
rhsaRHSA-2026:22634Important
msrcCVE-2026-2100
suse-csafopenSUSE-SU-2026:10169-1
rhsaRHSA-2026:7065Moderate
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://access.redhat.com/security/cve/CVE-2026-2100Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2437308Issue TrackingVendor Advisory
https://github.com/p11-glue/p11-kit/pull/740Issue TrackingPatch
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