gbsplay through 0.0.103 contains an out-of-bounds read vulnerability in mapper_map() in mapper.c that fails to reject
Affects gbsplaySource GCVE Database
Not known to be exploited · CVSS 6.8 Medium.
Data as of 28 Oct 2026, 22:34 UTC
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 26 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.10gbsplaypkg:deb/ubuntu/gbsplay?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSgbsplaypkg:deb/ubuntu/gbsplay?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSgbsplaypkg:deb/ubuntu/gbsplay?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 22.04 LTSgbsplaypkg:deb/ubuntu/gbsplay?arch=source&distro=jammyOther threats | Affected
| Fixed in– |
Ubuntu 20.04 LTSgbsplaypkg:deb/ubuntu/gbsplay?arch=source&distro=focalOther threats | Affected
| Fixed in– |
Ubuntu 18.04 LTSgbsplaypkg:deb/ubuntu/gbsplay?arch=source&distro=bionicOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Until a fix is available, avoid opening untrusted .gbr, .gbs, or .gb files with vulnerable versions of gbsplay.
Description
gbsplay versions up to 0.0.103 contain an out-of-bounds read vulnerability in the mapper_map() function. This flaw allows crafted game files to cause the player to read beyond the allocated ROM buffer, resulting in a crash. The vulnerability arises from improper validation of ROM bank indexes, leading to an underflowed bank length and heap buffer overread.
References
- ubuntu.com/security/CVE-2026-116725 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-116725 (opens in a new tab)
- github.com/mmitch/gbsplay (opens in a new tab)
- github.com/cveproject/cvelistv5/tree/main/cves/2026/116xxx/cve-2026-116725.json (opens in a new tab)
- github.com/mmitch/gbsplay/blob/0.0.103/mapper.c (opens in a new tab)
- github.com/mmitch/gbsplay/commit/a281d80bc56ed63347daf740a2f7aa4f8516165a (opens in a new tab)
- github.com/mmitch/gbsplay/issues/201 (opens in a new tab)
- hackmd.io/@haindpwn/gbsplay-rom-bank-index-oob-read (opens in a new tab)
- nvd.nist.gov/vuln/detail/cve-2026-116725 (opens in a new tab)
- vulncheck.com/advisories/gbsplay-through-0.0.103-out-of-bounds-read-via-mapper-map-rom-bank-index (opens in a new tab)