CVE-2025-68318

System hang via unintended AXI clock gating

Published Dec 16, 2025 · Updated Dec 16, 2025

Improper clock handling in Linux 6.11 through 6.17.7 allows attackers to hang TH1520 systems via unintended AXI clock gating. The TH1520 AP clock driver permits unused AXI gates to be disabled even though the SoC crossbar lacks proper timeout handling, leaving bus transactions stalled. Reachability requires a TH1520 system and an affected clock-gating event; the resulting bus timeout can freeze the entire system.

CVSS severityUnavailable
Unscored
EPSS probability0.17%
Next 30 days · Sep 17, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Improper clock handling in Linux 6.11 through 6.17.7 allows attackers to hang TH1520 systems via unintended AXI clock gating. The TH1520 AP clock driver permits unused AXI gates to be disabled even though the SoC crossbar lacks proper timeout handling, leaving bus transactions stalled. Reachability requires a TH1520 system and an affected clock-gating event; the resulting bus timeout can freeze the entire system.

The record

CVE
CVE-2025-68318
Published
Dec 16, 2025
Updated
Dec 16, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Dec 16, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 16, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <bdec5e01fc2f3114d1fb1daeb1000911d783c4ae
  2. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <c567bc5fc68c4388c00e11fc65fd14fe86b52070

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <bdec5e01fc2f3114d1fb1daeb1000911d783c4ae; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <c567bc5fc68c4388c00e11fc65fd14fe86b52070

Published CVSS scores

No CVSS assessment is available in this record.

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 11, 2026Sep 17, 2026
Latest reporting daySep 17, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo