CVE-2023-2593

linux: A flaw exists within the Linux kernel's handling of new TCP connections

CVE-2023-2593 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-2593, released July 30, 2025. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
5.9
medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0085
58th percentile

A flaw exists within the Linux kernel's handling of new TCP connections. The issue results from the lack of memory release after its effective lifetime. This vulnerability allows an unauthenticated attacker to create a denial of service condition on the system.

Where it's fixed

ProductFixed inFixReleased
Linux
linux · Debian 12.15 (bookworm) 6.1.7-1 DEBIAN-CVE-2023-2593 Jul 30, 2025
linux · Debian 13.5 (trixie) 6.1.7-1 DEBIAN-CVE-2023-2593 Jul 30, 2025
linux · Debian 14 6.1.7-1 DEBIAN-CVE-2023-2593 Jul 30, 2025

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