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VULNERABILITIES

CVE-2026-121968 Details

Description

Netrek-client-cow through 3.3.3 contains an out-of-bounds read vulnerability in short.c handleSMessage() that allows malicious servers to crash clients via an unchecked m_recpt index. Attackers controlling a Netrek server or intercepting the plaintext TCP connection can send SP_S_MESSAGE packets with m_recpt of 36 or more, reading past players[] and shipnos to deny service.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/quozl/netrek-client-cow [email protected]
https://github.com/quozl/netrek-client-cow/blob/3.3.3/short.c#L942-L943 [email protected]
https://github.com/quozl/netrek-client-cow/commit/fb322e74abee3b0b76a9c5a31df6aab5585d3127 [email protected]
https://www.vulncheck.com/advisories/netrek-client-cow-through-3.3.3-out-of-bounds-read-via-sp-s-message-packets [email protected]

Weakness Enumeration

CWE-IDCWE NameSource
CWE-129Improper Validation of Array Index[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-121968
NVD Published Date:
Nov 4, 2026
NVD Last Modified:
Nov 5, 2026
Source:
[email protected]
CVE-2026-121968 Details - Not Deferred