Medium severity5.5NVD Advisory· Published Oct 26, 2026
CVE-2026-116725
CVE-2026-116725
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.
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Affected products
1Patches
Vulnerability mechanics
References
5- github.com/mmitch/gbsplay/blob/0.0.103/mapper.cnvd
- github.com/mmitch/gbsplay/commit/a281d80bc56ed63347daf740a2f7aa4f8516165anvd
- github.com/mmitch/gbsplay/issues/201nvd
- hackmd.io/@haindpwn/gbsplay-rom-bank-index-oob-readnvd
- www.vulncheck.com/advisories/gbsplay-through-0.0.103-out-of-bounds-read-via-mapper-map-rom-bank-indexnvd
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