Vulnerability Description
gbsplay through 0.0.103 contains an out-of-bounds read vulnerability in mapper_map() in mapper.c that fails to reject ROM bank indexes beyond the ROM size, causing an underflowed bank length. Attackers can supply crafted .gbr, .gbs or .gb files with malicious bank indexes to make bank_get() read far past the heap ROM buffer and crash the player.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/mmitch/gbsplay
- https://github.com/mmitch/gbsplay/blob/0.0.103/mapper.c#L71-L103
- https://github.com/mmitch/gbsplay/commit/a281d80bc56ed63347daf740a2f7aa4f8516165
- https://github.com/mmitch/gbsplay/issues/201
- https://hackmd.io/@haindpwn/gbsplay-rom-bank-index-oob-read
- https://www.vulncheck.com/advisories/gbsplay-through-0.0.103-out-of-bounds-read-
FAQ
What is CVE-2026-116725?
CVE-2026-116725 is a vulnerability with a CVSS score of 5.5 (MEDIUM). gbsplay through 0.0.103 contains an out-of-bounds read vulnerability in mapper_map() in mapper.c that fails to reject ROM bank indexes beyond the ROM size, causing an underflowed bank length. Attacker...
How severe is CVE-2026-116725?
CVE-2026-116725 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-116725?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.