(0Day) Genesis World load_checkpoint Deserialization of Untrusted Data Remote Code Execution Vulnerability
Vulnerability Details
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Genesis World. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.
The specific flaw exists within the processing of checkpoint files. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the current process.
Additional Details
07/16/26 - ZDI emailed a Genesis World contributor to request a secure channel for vulnerability disclosures
07/28/26 - ZDI asked the vendor to update their security policy via a GitHub issue
07/28/26 - the vendor closed the issue
08/06/26 - ZDI followed up requesting the vendor’s PSIRT contacts
09/11/26 - ZDI notified the vendor of the intention to publish the case as a 0-day advisory
-- Mitigation: Given the nature of the vulnerability, the only salient mitigation strategy is to restrict interaction with the product
Disclosure Timeline
- 2026-09-25 - Vulnerability reported to vendor
- 2026-10-13 - Coordinated public release of advisory
- 2026-10-13 - Advisory Updated
Credit
Aaron Luo of VicOne LAB R7
