CVE-2023-6258

Name: CVE-2023-6258
Creator: NVD / NIST
Published: 2024-01-30T17:15:10.657+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.1/10EPSS 0.56%

Last modified Jun 17, 2026

CVE-2023-6258 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. A security vulnerability has been identified in the pkcs11-provider, which is associated with Public-Key Cryptography Standards (PKCS#11). If exploited successfully, this vulnerability could result in a Bleichenbacher-like security flaw, potentially enabling a side-channel attack on PKCS#1 1.5 decryption.. EPSS estimates a 0.56% chance of exploitation in the next 30 days.

Description

A security vulnerability has been identified in the pkcs11-provider, which is associated with Public-Key Cryptography Standards (PKCS#11). If exploited successfully, this vulnerability could result in a Bleichenbacher-like security flaw, potentially enabling a side-channel attack on PKCS#1 1.5 decryption.

Metrics

CVSS 3.1

8.1/10

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

EPSS Probability

0.56%

42.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Latchset	Pkcs11-Provider	0.1

References

https://bugzilla.redhat.com/show_bug.cgi?id=2251062Issue Tracking, Third Party Advisory
https://github.com/latchset/pkcs11-provider/pull/308Issue Tracking, Patch
https://bugzilla.redhat.com/show_bug.cgi?id=2251062Issue Tracking, Third Party Advisory
https://github.com/latchset/pkcs11-provider/pull/308Issue Tracking, Patch

Timeline

Published: Jan 30, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-6258?

How severe is CVE-2023-6258?

CVE-2023-6258 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 0.56% probability of exploitation in the next 30 days.

How do I fix CVE-2023-6258?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-6258?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST