# SZB-b323ce2f22: OpenAI says its GPT-6 Cyber model found 81 unknown Firefox flaws

According to BleepingComputer, OpenAI revealed GPT-6 Cyber, which it says discovered 81 previously unknown high-severity Firefox vulnerabilities. OpenAI also reportedly developed working exploits for 948 distinct Linux kernel flaws.

- Type: Early warning
- Kind: Vulnerability
- Vendor: Mozilla
- Product: Firefox
- Status: Reported, not confirmed
- Sources: 2 distinct
- First seen: 2026-11-05 15:02 UTC

> No statement or filing from Mozilla has reached cve.now yet. Every claim below is quoted from, and linked to, the source that made it.

Written by a model from the sources below. Verify against them.

## What to do

- Update Firefox as soon as Mozilla ships fixes for these flaws
- Watch Mozilla security advisories for the affected versions
- Apply Linux kernel updates from your distribution as they are released

## Timeline

- 2026-11-05 15:01 UTC: Made public by Mastodon
- 2026-11-05 15:02 UTC: First seen by cve.now
- 2026-11-06 20:26 UTC: Record last updated

## Evidence (2 sources)

- 2026-11-05 · Social · [Mastodon](https://mastodon.social/@EUVD_Bot/117564431854025651): “This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.” (+17 more: [Mastodon](https://mastodon.social/@EUVD_Bot/117564431894628326), [Mastodon](https://mastodon.social/@EUVD_Bot/117564432034837512), [Mastodon](https://mastodon.social/@EUVD_Bot/117564432077649789), [Mastodon](https://mastodon.social/@EUVD_Bot/117564432142583788), [Mastodon](https://mastodon.social/@EUVD_Bot/117564432171948993), [Mastodon](https://mastodon.social/@EUVD_Bot/117564432255628252), [Mastodon](https://mastodon.social/@EUVD_Bot/117564435802725173), [Mastodon](https://mastodon.social/@EUVD_Bot/117564435862602881), [Mastodon](https://mastodon.social/@EUVD_Bot/117564439995251824), [Mastodon](https://mastodon.social/@EUVD_Bot/117564440134278105), [Mastodon](https://mastodon.social/@EUVD_Bot/117564443730907444), [Mastodon](https://mastodon.social/@EUVD_Bot/117564447779590431), [Mastodon](https://mastodon.social/@EUVD_Bot/117564448066575352), [Mastodon](https://mastodon.social/@EUVD_Bot/117564451524173457), [Mastodon](https://mastodon.social/@EUVD_Bot/117564451637847715), [Mastodon](https://mastodon.social/@EUVD_Bot/117564672014935354), [Mastodon](https://mastodon.social/@EUVD_Bot/117564679868263818))
- 2026-11-06 · Press · [BleepingComputer](https://www.bleepingcomputer.com/news/security/openais-new-gpt-6-cyber-ai-finds-81-firefox-flaws-948-linux-bugs/): “OpenAI has revealed GPT-6 Cyber, a new artificial intelligence model that has discovered 81 previously unknown high-severity Firefox vulnerabilities and developed working exploits for 948 distinct Linux kernel flaws.” (+1 more: [BleepingComputer on Bluesky](https://bsky.app/profile/bleepingcomputer.com/post/3mzo7neyas72j))

## Corrections

None so far.

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## Questions about SZB-b323ce2f22

### Has Mozilla confirmed it?

Mastodon and BleepingComputer report it. No statement from Mozilla has reached cve.now yet.

Source: https://mastodon.social/@EUVD_Bot/117564431854025651, https://www.bleepingcomputer.com/news/security/openais-new-gpt-6-cyber-ai-finds-81-firefox-flaws-948-linux-bugs/

### What should Mozilla users do?

Update Firefox as soon as Mozilla ships fixes for these flaws. Watch Mozilla security advisories for the affected versions. Apply Linux kernel updates from your distribution as they are released.

## Related

- Browse: [Early warnings](https://cve.now/early-warnings.md)

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