# CVE-2026-58458: Don't Starve Together Memory Corruption via world_gen_data

Status: published. Published: 2026-10-28. Updated: 2026-11-02.

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.

## Remediation

- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulnCheck) — https://kleiforums.com/game-updates/dst/

## Affected products and versions

- Klei Entertainment / Don't Starve Together: ≥ 0; ≤ 747465 (affected, custom). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 6.9 (medium); CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N; source: CNA: VulnCheck

- CVSS 3.1: 6.5 (medium); CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H; source: CNA: VulnCheck

- CISA KEV: No listing in collected sources

- EPSS: 0.25% as of 2026-11-02; percentile 15.86%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-787

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://kleiforums.com/game-updates/dst/ (CNA: VulnCheck; release-notes, patch)

- https://www.vulncheck.com/advisories/don-t-starve-together-memory-corruption-via-world-gen-data (CNA: VulnCheck; third-party-advisory)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-58458; retrieved 2026-11-02; source updated 2026-11-02

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-58458; retrieved 2026-11-02; source updated Not reported

Revision: 6c77c317fee234b69f774d7a358aa7fa139d5fc4a6f7ea3dc5df1ca59237a295

Canonical: https://y2.dev/cve/CVE-2026-58458

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