Dashboard / CVE-2026-121968

CVE-2026-121968

HIGH
MEDIUM Priority: 0.02 BB Relevance: 64/100
Published: 2026-11-04 Modified: 2026-11-12 First seen: 2026-11-04 Status: active

Attack Surface

Network Low Complexity No Auth

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: Passive
S: X
AT: None
VC: None
VI: None
VA: High

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.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
quozl netrek-client-cow 0
quozl netrek-client-cow 0

References & Advisories (4)

Bug Bounty Relevance

64 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

7.1 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.33%
Raw Score 0.003250
Percentile 26.0%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00325
2026-11-12
0.00325
2026-11-10
0.00325
2026-11-09
0.00325
2026-11-08
0.00325
2026-11-07
0.00325
2026-11-06
0.00325
2026-11-05
0.00325

Intelligence Sources

mitre ref →
nvd ref →

External Links