Vulnerability · Published Aug 11, 2026 · Assigned by intel

CVE-2025-31356

Medium 5.6

In plain English

A medium-severity insufficient verification of data authenticity in Intel(R) Trust Domain Extensions (Intel(R) TDX). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 0% of all known vulnerabilities).

Severity (CVSS 4.0)5.6Medium

Exploit odds (30 days)<0.1%top 100.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Insufficient verification of data authenticity for some Intel(R) Trust Domain Extensions (Intel(R) TDX) within Ring 0: Hypervisor may allow an information disclosure. A system software adversary with a privileged user access combined with a high complexity attack may enable data exposure. This result may potentially occur via local access when attack requirements are present without any user interaction. The potential vulnerability may impact the confidentiality (high), integrity (low) and no effect on availability. Subsequent system impacts include reduced confidentiality (low), integrity (low), and no effect on availability.

Affected products (as reported)

Vendor	Product	Versions
n/a	Intel(R) Trust Domain Extensions (Intel(R) TDX)	See references

Weakness: CWE-345 · Vector: CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:H/VI:L/VA:N/SC:L/SI:L/SA:N

References

https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01419.html