CVE-2026-56943
Published Nov 10, 2026
Modified Nov 10, 2026
Description
In multiple locations, there is a possible way to trigger an out of bounds read via an attestation comparison oracle due to an incorrect bounds check. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.
Is your site exposed to CVE-2026-56943?
Run a free security scan — no signup, results in seconds.
EPSS — Exploit Prediction
0.0012
Probability of exploitation
0.02%
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.
References
Frequently Asked Questions
What is CVE-2026-56943? +
In multiple locations, there is a possible way to trigger an out of bounds read via an attestation comparison oracle due to an incorrect bounds check. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.
How do I check if I'm vulnerable to CVE-2026-56943? +
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.
