How severe is CVE-2026-2100?

CVE-2026-2100 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2026-2100 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-2100?

CVE-2026-2100 primarily affects Redhat Hardened Images. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-2100?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-2100 have an EU (EUVD) identifier?

Yes. CVE-2026-2100 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-16336.

When was CVE-2026-2100 published?

CVE-2026-2100 was published on 2026-03-26 and last updated on 2026-07-07.

CVE-2026-2100

CVE-2026-2100 is a medium-severity vulnerability in Redhat Hardened Images with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-824.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-16336
Weakness: CWE-824
Affected product: Redhat Hardened Images
Published: 2026-03-26
Last modified: 2026-07-07

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.

Frequently asked questions

What is 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 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.
How severe is CVE-2026-2100?: CVE-2026-2100 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2026-2100 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-2100?: CVE-2026-2100 primarily affects Redhat Hardened Images. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-2100?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-2100 have an EU (EUVD) identifier?: Yes. CVE-2026-2100 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-16336.
When was CVE-2026-2100 published?: CVE-2026-2100 was published on 2026-03-26 and last updated on 2026-07-07.

References

Affected products (4)

cpe:2.3:a:p11-kit_project:p11-kit:-:*:*:*:*:*:*:*
cpe:2.3:a:redhat:hardened_images:-:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*

More vulnerabilities in Redhat Hardened Images

CVE-2026-0966 — High (CVSS 8.2): A flaw was found in libssh. The API function `ssh_get_hexa()` is vulnerable to a denial of service when processing…
CVE-2026-48864 — High (CVSS 7.8): A flaw was found in libsolv. This heap buffer overflow occurs during the decompression of attacker-controlled…
CVE-2026-6846 — High (CVSS 7.8): A flaw was found in binutils. A heap-buffer-overflow vulnerability exists when processing a specially crafted XCOFF…
CVE-2025-14821 — High (CVSS 7.8): A flaw was found in libssh. This vulnerability allows local man-in-the-middle attacks, security downgrades of SSH…
CVE-2026-4775 — High (CVSS 7.8): A flaw was found in the libtiff library. A remote attacker could exploit a signed integer overflow vulnerability in the…
CVE-2026-42009 — High (CVSS 7.5): A flaw was found in gnutls. A remote attacker could exploit an issue in the Datagram Transport Layer Security (DTLS)…

All CVEs affecting Redhat Hardened Images →

Other CWE-824 vulnerabilities

CVE-2009-0846 — Critical (CVSS 10.0): The asn1_decode_generaltime function in lib/krb5/asn.1/asn1_decode.c in the ASN.1 GeneralizedTime decoder in MIT…
CVE-2007-2442 — Critical (CVSS 10.0): The gssrpc__svcauth_gssapi function in the RPC library in MIT Kerberos 5 (krb5) 1.6.1 and earlier might allow remote…
CVE-2026-2805 — Critical (CVSS 9.8): Invalid pointer in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.
CVE-2026-2785 — Critical (CVSS 9.8): Invalid pointer in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8,…
CVE-2022-46280 — Critical (CVSS 9.8): A use of uninitialized pointer vulnerability exists in the PQS format pFormat functionality of Open Babel 3.1.1 and…
CVE-2022-44451 — Critical (CVSS 9.8): A use of uninitialized pointer vulnerability exists in the MSI format atom functionality of Open Babel 3.1.1 and master…

Browse all CWE-824 vulnerabilities →