OpenAI's GPT-6 Cyber finds 81 Firefox flaws and builds 948 Linux kernel exploits
- Severity
- High
- Sources
- 1
What happened
OpenAI's GPT-6 Cyber, rated Critical under its Preparedness Framework, reported 81 new high-severity Firefox bugs, mostly use-after-free errors in layout, DOM and JavaScript, fixed in Firefox 159 under Mozilla advisory MFSA 2026-118, and said 30 known issues were worse than first reported. Its Linux kernel pipeline produced 948 working local privilege escalation exploits from 1,724 reproduced candidate findings, with 304 critical findings disclosed and 61 fixed upstream within 10 days. Defenders should apply Firefox 159, rescan older code as models improve, and treat low-privilege access on unpatched systems as close to root.
For security analysts · Written by AI from 1 source · Wrong?
What to do
- Update Firefox to version 159 or later, which contains the fixes in MFSA 2026-118.
- Rescan older code when newer models become available, as the article advises.
- Patch quickly and treat a low-privilege account on an unpatched system as close to root.
Written by AI from the sources, checked against them
Full story timeline · 1 update
Who reported · 1 outlet
Who and what is in it
Products