CVE-2026-72143

SST-PP configuration loss via wrong domain base

Published Aug 15, 2026 · Updated Aug 15, 2026

Improper state restoration in the Linux kernel ISST driver allows local users to disrupt power management after system resume. The resume path reads each domain's saved SST-PP control value but writes every restoration through power_domain_info->sst_base, which addresses only power domain 0. Exploitation requires an x86 system with Intel SST-PP, multiple power domains, and a suspend-resume cycle; nonzero domains can retain incorrect power-profile settings.

CVSS severity7.1
High
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper state restoration in the Linux kernel ISST driver allows local users to disrupt power management after system resume. The resume path reads each domain's saved SST-PP control value but writes every restoration through power_domain_info->sst_base, which addresses only power domain 0. Exploitation requires an x86 system with Intel SST-PP, multiple power domains, and a suspend-resume cycle; nonzero domains can retain incorrect power-profile settings.

The record

CVE
CVE-2026-72143
Published
Aug 15, 2026
Updated
Aug 15, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-628
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 15, 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?

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

  1. Affected versionversion=2624f3bf45a830cb3b8c8b967b23a72139700562
  2. Affected versionversion=6.18.16 <6.18.40
  3. Affected versionversion=6.19.6 <6.20
  4. Affected versionversion=7.0
  5. Affected versionversion=dc7901b5a1563a9c9eb29b3b0b0dac3162065cd8 <2565a28cdcdcb035e151d285efcba26bccb3726e
  6. Affected versionversion=dc7901b5a1563a9c9eb29b3b0b0dac3162065cd8 <2a42f651cce91e9cbe65fe933622c522cbb1868b
  7. Affected versionversion=e3704ce5d7156ee837461be99841f312c64700b0 <cea03d67db3a880893360bdbb1b0b8d9b33b1799

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=2624f3bf45a830cb3b8c8b967b23a72139700562; version=6.18.16 <6.18.40; version=6.19.6 <6.20; version=7.0; version=dc7901b5a1563a9c9eb29b3b0b0dac3162065cd8 <2565a28cdcdcb035e151d285efcba26bccb3726e; version=dc7901b5a1563a9c9eb29b3b0b0dac3162065cd8 <2a42f651cce91e9cbe65fe933622c522cbb1868b; version=e3704ce5d7156ee837461be99841f312c64700b0 <cea03d67db3a880893360bdbb1b0b8d9b33b1799

Published CVSS scores

7.1UbuntuCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-628Function Call with Incorrectly Specified Arguments

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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