Predictable Seed Vulnerability in Intel TDX Firmware
CVE-2025-20613

2LOW

Key Information:

Vendor

Intel
Status
Intel(r) Tdx
Vendor
CVE Published:
12 August 2025

What is CVE-2025-20613?

A vulnerability exists in the firmware for Intel TDX, where a predictable seed in the Pseudo-Random Number Generator (PRNG) can enable an authenticated user to potentially access sensitive information via local access. This flaw highlights the importance of robust random number generation techniques in maintaining data confidentiality and integrity.

Affected Version(s)

Intel(R) TDX See references

References

https://intel.com/content/www/us/en/security-center/advis...

CVSS V4

Score:
2
Severity:
LOW
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2025-20613 : Predictable Seed Vulnerability in Intel TDX Firmware