HOMEVULNERABILITIESCVE-2026-2100
MEDIUM

CVE-2026-2100

CWE-824Published: March 26, 2026· Updated: Mar 30, 2026

5.3
CVSS v3.1
EPSS:0.10%probability of exploitation in 30 daysPercentile:26.5th

Official 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.

NVD Source

Technical Analysis

CVE-2026-2100 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityLow
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected Vendors & Products

Mentioned vendors (from description):
IBM
CPE data not yet available in NVD for this CVE.

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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All References (3)

→
https://access.redhat.com/security/cve/CVE-2026-2100
→
https://bugzilla.redhat.com/show_bug.cgi?id=2437308
→
https://github.com/p11-glue/p11-kit/pull/740

Quick Facts

CVE IDCVE-2026-2100
CVSS Score5.3 / 10
SeverityMEDIUM
WeaknessCWE-824
CISA KEVNo
EPSS (30d)0.10%
PublishedMar 26, 2026

Related CVEs (CWE-824)

CVE-2026-44411
7.8
CVE-2026-47908
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CVE-2026-39458
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CVE-2026-42959
7.5
CVE-2026-1200
6.3
CVE-2026-6524
5.5

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-2100 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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