CVE-2024-36242

Guest privilege escalation via unenforced SPP writes

Published Nov 13, 2024 · Updated Nov 14, 2024

Protection mechanism failure in SPP on some Intel Processors allows guest OS users to escalate privileges through local access. A malicious guest OS can write to any guest physical address that the VMM marked nonwritable, defeating SPP's sub-page memory controls. The VMM must enable SPP for EPT execution control and map at least one SPP-enabled page into the guest; Intel reports no mainstream VMM usage.

CVSS severity7.3
High
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Protection mechanism failure in SPP on some Intel Processors allows guest OS users to escalate privileges through local access. A malicious guest OS can write to any guest physical address that the VMM marked nonwritable, defeating SPP's sub-page memory controls. The VMM must enable SPP for EPT execution control and map at least one SPP-enabled page into the guest; Intel reports no mainstream VMM usage.

The record

CVE
CVE-2024-36242
Published
Nov 13, 2024
Updated
Nov 14, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-693, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 13, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 14, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8Intel CorporationCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
7.3Intel CorporationCVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/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.

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

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-693Protection Mechanism Failure
T1068Exploitation for Privilege Escalation

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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