CVE-2021-43518

medium

Published — · Modified —

CVSS v3

—

CVSS v2

—

VIR risk

5.5

Description

Teeworlds up to and including 0.7.5 is vulnerable to Buffer Overflow. A map parser does not validate m_Channels value coming from a map file, leading to a buffer overflow. A malicious server may offer a specially crafted map that will overwrite client's stack causing denial of service or code execution.

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-43518

OS impact

OS	Version	Status	Fixed in
arch		affected
debian	bookworm	fixed	`0.7.5-2`
debian	bullseye	affected
debian	forky	fixed	`0.7.5-2`
debian	sid	fixed	`0.7.5-2`
debian	trixie	fixed	`0.7.5-2`

References

https://security-tracker.debian.org/tracker/CVE-2021-43518

Verify integrity in audit chain (admin only). AS-IS.