CVE-2026-121968
Medium
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.
SeverityMedium
CVSS6.5
Exploit probability—
ProductQuozl Netrek-client-cow
PublishedNov 4, 2026
First seenNov 4, 2026
Weakness typeCWE-129CWE-129
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| quozl netrek-client-cow | v ≤ 3.3.3 | — |
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