GPT – CyberSecurityBoard

Cyber Products

A subsequent version of the GPT model that was tested by the researcher and found to still be exploitable with modified instructions.

AI model GPT GPT-5.6 Prompt Injection

July 30, 2026

Critical CVEs

A malformed GPT partition table can hang the device during mount. Fixed in FatFs R0.16. CVSS 4.6 (Medium).

CVE-2026-6684 denial of service FatFs GPT

July 3, 2026

Cyber Products

An upgraded large language model deployed by Microsoft as a mitigation against the prompt injection vulnerability in Copilot for Word.

AI model GPT GPT-5.5 Microsoft

June 25, 2026