What is CVE-2025-21096?

CVE-2025-21096 is a low-severity vulnerability in Intel(r) Tdx, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 1.9/10. Published 2025-08-12.

How severe is CVE-2025-21096?

Low severity. CVSS v3 base score is 1.9 out of 10.

Buffer overflow in Intel(r) Tdx

CVE-2025-21096

Improper buffer restrictions in the firmware for some Intel(R) TDX may allow a privileged user to potentially enable escalation of privilege via local access.

Vulnerability class: Buffer Overflow

EPSS: 0.001 (2.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 1.9 (Low). Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:N.

Affected products

N/a Intel(r) Tdx — versions See references

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

References

secure@intel.com

Frequently asked questions

What is CVE-2025-21096?: CVE-2025-21096 is a low-severity vulnerability in Intel(r) Tdx, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 1.9/10. Published 2025-08-12.
How severe is CVE-2025-21096?: Low severity. CVSS v3 base score is 1.9 out of 10.