Is CVE-2026-23364 in the CISA KEV catalog?

No. CVE-2026-23364 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-23364?

CVE-2026-23364 has a CVSS v3 base score of 5.5 (Moderate).

What is the EPSS score for CVE-2026-23364?

CVE-2026-23364 has an EPSS score of 0.39% (31th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-23364?

Upgrade linux on debian 12 to 6.1.170-1 or later.

CVE & CISA-KEV Catalog

CVE-2026-23364

MEDIUM

5.5

CVSS v3

NVD

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Compare MACs in constant time To prevent timing attacks, MAC comparisons need to be constant-time. Replace the memcmp() with the correct function, crypto_memneq().

How to fix

Remediation Available

linuxDebian

Fixed in:6.1.170-1CVE-2026-23364

Fixed in:6.12.85-1CVE-2026-23364

Fixed in:6.19.8-1CVE-2026-23364

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.39%probability of exploitation in 30 days

31stpercentile

Low risk: more likely to be exploited than 31% of all known CVEs.

References

Patch6

Other references1

git.kernel.org

Embed a live status badge for CVE-2026-23364

Markdown

[![CVE-2026-23364](https://tridentstack.com/cve/badge/CVE-2026-23364.svg)](https://tridentstack.com/cve/CVE-2026-23364)

HTML

<a href="https://tridentstack.com/cve/CVE-2026-23364"><img src="https://tridentstack.com/cve/badge/CVE-2026-23364.svg" alt="CVE-2026-23364"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-19.