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01 Record

CVE-2026-2100

P11-kit: null dereference via c_derivekey with specific null parameters

MediumPUBLISHEDCNA: redhat

CNA base score5.3 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

02 Description

P11-kit: null dereference via c_derivekey with specific null parameters

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

1.16% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 64.9% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-08-31.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2026-03-26 20:01Z5 MO AGO

Last updated

2026-08-31 11:29Z4 DAYS AGO

Reserved

2026-02-06

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Weaknesses

CWE-824Access of Uninitialized PointerBase

Data version

5.2

Document digest

ee951a7059aded1b254e3af1d3268dddddbba7807e8d67fc479eec3dc3ac2fba

05 Affected products

VendorProductVersionsPlatforms

p11-gluep11-kit0 to < 0.26.2—

Red HatRed Hat Enterprise Linux 10Not specified—

Red HatRed Hat Enterprise Linux 9Not specified—

Red HatCost Management Metrics Operator 4Not specified—

Red HatRed Hat Hardened ImagesNot specified—

Red HatRed Hat Insights proxy 1.5Not specified—

Red HatRed Hat Update Infrastructure 5Not specified—

Red HatRed Hat Enterprise Linux 6Not specified—

Red HatRed Hat Enterprise Linux 7Not specified—

Red HatRed Hat Enterprise Linux 8Not specified—

Red HatRed Hat OpenShift Container Platform 4Not specified—

06 References

access.redhat.comRHSA-2026:18143https://access.redhat.com/errata/RHSA-2026:18143vendor-advisoryx_refsource_REDHAT
access.redhat.comRHSA-2026:18599https://access.redhat.com/errata/RHSA-2026:18599vendor-advisoryx_refsource_REDHAT
access.redhat.comRHSA-2026:21275https://access.redhat.com/errata/RHSA-2026:21275vendor-advisoryx_refsource_REDHAT
access.redhat.comRHSA-2026:22634https://access.redhat.com/errata/RHSA-2026:22634vendor-advisoryx_refsource_REDHAT
access.redhat.comRHSA-2026:27998https://access.redhat.com/errata/RHSA-2026:27998vendor-advisoryx_refsource_REDHAT
access.redhat.comRHSA-2026:58981https://access.redhat.com/errata/RHSA-2026:58981vendor-advisoryx_refsource_REDHAT
access.redhat.comRHSA-2026:7065https://access.redhat.com/errata/RHSA-2026:7065vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-2100vdb-entryx_refsource_REDHAT
bugzilla.redhat.comRHBZ#2437308https://bugzilla.redhat.com/show_bug.cgi?id=2437308issue-trackingx_refsource_REDHAT
github.comhttps://github.com/p11-glue/p11-kit/pull/740
github.comhttps://github.com/p11-glue/p11-kit/releases/tag/0.26.2