CVE-2026-42014
Gnutls: fix use-after-free in gnutls_pkcs11_token_set_pin
Description
A flaw was found in GnuTLS. The `gnutls_pkcs11_token_set_pin` function, used for changing the Security Officer PIN, can lead to a use-after-free vulnerability. This occurs when an attacker attempts to change the PIN with a NULL old PIN for a token that lacks a protected authentication path.
INFO
Published Date :
June 16, 2026, 2:16 a.m.
Last Modified :
June 16, 2026, 2:16 a.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-42014
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | 53f830b8-0a3f-465b-8143-3b8a9948e749 | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update GnuTLS to the latest patched version.
- Apply vendor-supplied security patches.
- Recompile the affected software if necessary.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-42014.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-42014 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-42014
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-42014 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-42014 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by [email protected]
Jun. 16, 2026
Action Type Old Value New Value Added Description A flaw was found in GnuTLS. The `gnutls_pkcs11_token_set_pin` function, used for changing the Security Officer PIN, can lead to a use-after-free vulnerability. This occurs when an attacker attempts to change the PIN with a NULL old PIN for a token that lacks a protected authentication path. Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H Added CWE CWE-825 Added Reference https://access.redhat.com/errata/RHSA-2026:20611 Added Reference https://access.redhat.com/errata/RHSA-2026:20612 Added Reference https://access.redhat.com/errata/RHSA-2026:20613 Added Reference https://access.redhat.com/security/cve/CVE-2026-42014 Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2467451 Added Reference https://gitlab.com/gnutls/gnutls/-/issues/1766 Added Reference https://www.gnutls.org/security-new.html#GNUTLS-SA-2026-04-29-9