Buffer overflow in Klei Entertainment Don't Starve Together
CVE-2026-58458
Don't Starve Together (Steam AppID 322330) through build 747465 contains a memory-corruption vulnerability in the native persistent-string decoder that allows a remote attacker operating a public dedicated server to crash a victim's game client by publishing crafted world_gen_data with an invalid Klei persistent blob header length. Attackers can craft a malicious public lobby server listing that, once viewed or selected by the victim, triggers client-side decoding of the attacker-controlled data to corrupt native memory and cause a remote denial of service.
Vulnerability class: Buffer Overflow
Published .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- kleiforums.com/game-updates/dst/ (release-notes, patch)
- www.vulncheck.com/advisories/don-t-starve-together-memory-corruption-via-world-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-58458?
- CVE-2026-58458 is a medium-severity vulnerability in Klei Entertainment Don't Starve Together, classified under Out-of-bounds Write. CVSS score: 6.5/10. Published 2026-10-28.
- How severe is CVE-2026-58458?
- Medium severity. CVSS v3 base score is 6.5 out of 10.