CVE-2024-27457

Information disclosure via single-stepping counter bypass

Published Oct 8, 2024 · Updated Oct 9, 2024

Improper exceptional-condition handling in Intel TDX Module firmware before 1.5.06 allows local users with privileged access to disclose data. Intel identifies the affected behavior as a single-stepping counter bypass but does not disclose the checked condition or the data exposed. Exploitation requires local privileged access and high attack complexity; no integrity or availability impact is reported.

CVSS severity2.5
Low
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper exceptional-condition handling in Intel TDX Module firmware before 1.5.06 allows local users with privileged access to disclose data. Intel identifies the affected behavior as a single-stepping counter bypass but does not disclose the checked condition or the data exposed. Exploitation requires local privileged access and high attack complexity; no integrity or availability impact is reported.

The record

CVE
CVE-2024-27457
Published
Oct 8, 2024
Updated
Oct 9, 2024
Vendor
Topcon Positioning Systems, Inc.
Product
Intel Trust Domain Extensions (TDX) Module
Classifications
CWE-754
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Oct 8, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 9, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=before version 1.5.06

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Topcon Positioning Systems, Inc. · Intel Trust Domain Extensions (TDX) Moduleversion=before version 1.5.06

Published CVSS scores

2.5Intel CorporationCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:N
1.8Intel CorporationCVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-754Improper Check for Unusual or Exceptional Conditions

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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