CVE-2026-8390

CVE

Threat entity extracted from intelligence sources

Frequency

occurrences

First Seen

June 22, 2026

Last Seen

June 22, 2026

API

Exploited in Wild

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Ransomware Use

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Public Exploits

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Attack Vector

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Vulnerability Overview

Exploitation Activity

Exploitation Intelligence

OpenAI Launches GPT-5.4-Cyber Amidst Cybersecurity Arms Race51.9

OpenAI has introduced GPT-5.4-Cyber, a specialized AI model for defensive cybersecurity, available only to vetted professionals through its Trusted Access for Cyber (TAC) program. This model is designed to facilitate advanced tasks such as binary reverse engineering and vulnerability analysis with f...