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Type confusion in 2K Games Sid Meier's Civilization VI Lua sandbox

Priority MEDIUM 57CWE-843Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
Low · Low · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

2K Games Sid Meier's Civilization VI 1.0.12.68 contains a type confusion flaw (CWE-843) in the loadstring function of its Lua sandbox. Manipulating this function results in type confusion, and a remote attacker can start the attack. A public exploit has been released and is linked in the references.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

A security flaw has been discovered in 2K Games Sid Meier's Civilization VI 1.0.12.68. The affected element is the function loadstring of the component Lua sandbox. Performing a manipulation results in type confusion. The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks. The patch is named Hotfix November 2026. The vendor was contacted early about this disclosure.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00392 33rd percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD and the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
2K GamesSid Meier's Civilization VI1.0.12.68—No fix listedCNA
  • Sid Meier's Civilization VI Vendor2K Games Affected 1.0.12.68 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:2k:sid_meiers_civilization_vi:1.0.12.68:*:*:*:*:*:*:*1.0.12.68Vulnerable2k
  • cpe:2.3:a:2k:sid_meiers_civilization_vi:1.0.12.68:*:*:*:*:*:*:* Versions 1.0.12.68 Vulnerable ·2k

Remediation

The sources list no fixed version for 2K Games Sid Meier's Civilization VI.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Timeline

  1. 2026-10-26 Threatist record created from CVE-2026-116370
  2. 2026-10-27 Title updated · CNA
  3. 2026-10-27 Affected versions changed · CNA
  4. 2026-10-27 Alias added: GHSA-x6v8-mwjf-8mrc
  5. 2026-10-28 CVSS score added · NVD
  6. 2026-10-29 CVSS score changed · NVD
  7. 2026-11-02 CISA SSVC decision points changed
  8. 2026-11-02 Priority changed: LOW → MEDIUM
  9. 2026-11-06 CVSS score changed · CNA
  10. 2026-11-06 1 new reference · CNA

References

  • TI-2026-80244 Type confusion in 2K Games Civilization V Lua Sandbox loadstring CVSS 4.0MEDIUM 5.3
  • TI-2009-02778 Format string vulnerability in the CNS_AddTxt function in logs.dll in 2K Games Vietcong 2… CVSS 2.0HIGH 9.3

Sources