What’s Vulnerable › Vulnerabilities

CVE-2026-116726: gbsplay through 0.0.103 Heap Out-of-Bounds Read via gbr_open GBR Title

• Severity: low (CVSS 3.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-26 · updated 2026-10-27
• Weakness: CWE-125

Description

Gbsplay through 0.0.103 contains a heap out-of-bounds read vulnerability in gbr_open() in gbs.c that fails to verify file length before scanning the GBR ROM title field. Attackers can supply a crafted GBR file of 0x21 to 0x162 bytes to read past the heap buffer, crashing gbsplay or leaking memory.

Affected products

• mmitch gbsplay: through 0.0.103

References

• https://github.com/mmitch/gbsplay
• https://github.com/mmitch/gbsplay/blob/0.0.103/gbs.c#L810-L820
• https://github.com/mmitch/gbsplay/commit/33812ed38d84b800b5a17f639ef6625f76290785
• 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-heap-out-of-bounds-read-via-gbr-open-gbr-title

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