Quick answers
- Is CVE-2026-66333 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-66333 being exploited in the wild.
- How severe is CVE-2026-66333?
- Informational severity, published 10 November 2026.
- Which products and versions are affected?
- AMI APTIOV.
- Is there a fix for CVE-2026-66333?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-66333 attacked?
- It is attacked with local access, in device firmware.
- Am I affected by CVE-2026-66333?
- Check whether you run AMI APTIOV. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
An out-of-bounds read vulnerability exists in AMI APTIOV BIOS firmware that can be triggered by a privileged local attacker. The flaw may manifest as a denial of service (system crash or failed firmware update) when the out-of-bounds read accesses unmapped memory, and could also lead to information disclosure or availability impact.
Affected products
- AMI APTIOV
Timeline
- 2026-11-10: disclosed