CVE-2025-35987

Privileged attestation denial via incomplete QVL results

Published Aug 11, 2026 · Updated Aug 11, 2026

Omission of security-relevant information in Intel TDX DCAP 1.14 through 1.23 allows local users with admin privileges to disrupt attestation. The Quote Verification Library returns insufficient detail for customer platform security verification; Intel has not disclosed the faulty function or omitted fields. Exploitation requires privileged local access, high complexity, attack requirements, special internal knowledge, and no user interaction; the result alters verification data and interrupts attestation.

CVSS severity4.3
Medium
EPSS probability0.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Omission of security-relevant information in Intel TDX DCAP 1.14 through 1.23 allows local users with admin privileges to disrupt attestation. The Quote Verification Library returns insufficient detail for customer platform security verification; Intel has not disclosed the faulty function or omitted fields. Exploitation requires privileged local access, high complexity, attack requirements, special internal knowledge, and no user interaction; the result alters verification data and interrupts attestation.

The record

CVE
CVE-2025-35987
Published
Aug 11, 2026
Updated
Aug 11, 2026
Vendor
Topcon Positioning Systems, Inc.
Product
Intel Software Guard Extensions Data Center Attestation Primitives
Classifications
CWE-223
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Aug 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=See references

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Topcon Positioning Systems, Inc. · Intel Software Guard Extensions Data Center Attestation Primitivesversion=See references

Published CVSS scores

4.3Intel CorporationCVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:N/VI:L/VA:L/SC:N/SI:H/SA:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-223Omission of Security-relevant Information

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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