CVE-2026-116726
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AI Threat Summary
CVE-2026-116726 is a moderate vulnerability with a CVSS score of 3.3 affecting the target software. Threat hunters should monitor for exploit attempts and apply vendor patches immediately.
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.
Attack Chain
Attacker scans for vulnerable versions using version banners or PoC scanners
Attacker triggers CVE-2026-116726 vulnerability with a crafted request or payload
Vulnerability exploited to perform unauthorized actions on the target system
Depending on vulnerability type, attacker achieves data access, service disruption, or code execution
MITRE ATT&CK Techniques
Indicators of Compromise
| Type | Value | Description | |
|---|---|---|---|
| user_agent | Mozilla/5.0 (compatible; exploit/1.0) |
Generic exploit scanner user agent pattern | |
| url | /api/vuln-endpoint?payload=<malicious> |
Exploit attempt against application endpoint — monitor access logs for anomalous params |
Remediation
Quick Facts
| CVE ID | CVE-2026-116726 |
| CVSS Score | 3.3 |
| Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L |
| Published | 2026-10-26 |
| Exploited | No |
| CISA KEV | No |
| PoC | Not public |
References
- https://github.com/mmitch/gbsplay
- https://github.com/mmitch/gbsplay/blob/0.0.103/gbs.c#L810-L8…
- https://github.com/mmitch/gbsplay/commit/33812ed38d84b800b5a…
- 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…