CVE-2026-66332

Published Nov 10, 2026 Modified Nov 12, 2026 CWE-125

Description

AMI APTIOV contains a vulnerability in BIOS where a privileged user may cause the “Out-of-Bound Read” by local access. Successful exploitation of this vulnerability may lead to a denial of service during firmware update processing, such as a crash or failed update if the out-of-bounds read hits unmapped memory. It could also potentially impact Confidentiality and Availability.

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EPSS — Exploit Prediction

0.0011
Probability of exploitation
0.01%
Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-125 Out-of-bounds Read

References

Frequently Asked Questions

What is CVE-2026-66332? +
AMI APTIOV contains a vulnerability in BIOS where a privileged user may cause the “Out-of-Bound Read” by local access. Successful exploitation of this vulnerability may lead to a denial of service during firmware update processing, such as a crash or failed update if the out-of-bounds read hits unmapped memory. It could also potentially impact Confidentiality and Availability.
How do I check if I'm vulnerable to CVE-2026-66332? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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