Is CVE-2023-53839 in the CISA KEV catalog?

No. CVE-2023-53839 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the EPSS score for CVE-2023-53839?

CVE-2023-53839 has an EPSS score of 0.22% (12th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-53839?

Upgrade linux on debian 11 to 5.10.191-1 or later.

CVE & CISA-KEV Catalog

CVE-2023-53839

UNSCORED

NVD

Description

In the Linux kernel, the following vulnerability has been resolved: dccp: fix data-race around dp->dccps_mss_cache dccp_sendmsg() reads dp->dccps_mss_cache before locking the socket. Same thing in do_dccp_getsockopt(). Add READ_ONCE()/WRITE_ONCE() annotations, and change dccp_sendmsg() to check again dccps_mss_cache after socket is locked.

How to fix

Remediation Available

linuxDebian

Fixed in:5.10.191-1CVE-2023-53839

Fixed in:6.1.52-1CVE-2023-53839

Fixed in:6.4.11-1CVE-2023-53839

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

CVSS v3.1 Vector

No CVSS vector data available.

Exploit Intelligence

0.22%probability of exploitation in 30 days

12thpercentile

Low risk: more likely to be exploited than 12% of all known CVEs.

References

Other references8

Embed a live status badge for CVE-2023-53839

Markdown

[![CVE-2023-53839](https://tridentstack.com/cve/badge/CVE-2023-53839.svg)](https://tridentstack.com/cve/CVE-2023-53839)

HTML

<a href="https://tridentstack.com/cve/CVE-2023-53839"><img src="https://tridentstack.com/cve/badge/CVE-2023-53839.svg" alt="CVE-2023-53839"></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 2025-12-09.