CVE-2025-37830

Local kernel crash via unchecked CPU policy

Published May 8, 2025 · Updated May 11, 2026

NULL pointer dereference in affected Linux kernel versions allows local users to crash the system through the SCMI cpufreq driver. scmi_cpufreq_get_rate() dereferences the policy returned by cpufreq_cpu_get_raw() without checking whether a CPU outside policy->cpus produced NULL. Reachability requires local low-privileged access and an SCMI cpufreq configuration; successful exploitation causes a kernel crash without reported data disclosure or modification.

CVSS severity5.5
Medium
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

NULL pointer dereference in affected Linux kernel versions allows local users to crash the system through the SCMI cpufreq driver. scmi_cpufreq_get_rate() dereferences the policy returned by cpufreq_cpu_get_raw() without checking whether a CPU outside policy->cpus produced NULL. Reachability requires local low-privileged access and an SCMI cpufreq configuration; successful exploitation causes a kernel crash without reported data disclosure or modification.

The record

CVE
CVE-2025-37830
Published
May 8, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 8, 2025CVE publishedPublication date reported by the CVE source.
  2. May 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?

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

  1. Affected versionversion=4.17
  2. Affected versionversion=99d6bdf3387734d75e3e34e94a58b8a355b7a9c8 <484d3f15cc6cbaa52541d6259778e715b2c83c54
  3. Affected versionversion=99d6bdf3387734d75e3e34e94a58b8a355b7a9c8 <4e3d1c1925d8e752992cd893d03d974e6807ac16
  4. Affected versionversion=99d6bdf3387734d75e3e34e94a58b8a355b7a9c8 <7ccfadfb2562337b4f0462a86a9746a6eea89718
  5. Affected versionversion=99d6bdf3387734d75e3e34e94a58b8a355b7a9c8 <bd1dcfba72aac4159c1d5e17cd861e702e6c19ac
  6. Affected versionversion=99d6bdf3387734d75e3e34e94a58b8a355b7a9c8 <cfaca93b8fe317b7faa9af732e0ba8c9081fa018
  7. Affected versionversion=99d6bdf3387734d75e3e34e94a58b8a355b7a9c8 <ea834c90aa7cc80a1b456f7a91432734d5087d16
  8. Affected versionversion=99d6bdf3387734d75e3e34e94a58b8a355b7a9c8 <f9c5423855e3687262d881aeee5cfb3bc8577bff

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.17; version=99d6bdf3387734d75e3e34e94a58b8a355b7a9c8 <484d3f15cc6cbaa52541d6259778e715b2c83c54; version=99d6bdf3387734d75e3e34e94a58b8a355b7a9c8 <4e3d1c1925d8e752992cd893d03d974e6807ac16; version=99d6bdf3387734d75e3e34e94a58b8a355b7a9c8 <7ccfadfb2562337b4f0462a86a9746a6eea89718; version=99d6bdf3387734d75e3e34e94a58b8a355b7a9c8 <bd1dcfba72aac4159c1d5e17cd861e702e6c19ac; version=99d6bdf3387734d75e3e34e94a58b8a355b7a9c8 <cfaca93b8fe317b7faa9af732e0ba8c9081fa018; version=99d6bdf3387734d75e3e34e94a58b8a355b7a9c8 <ea834c90aa7cc80a1b456f7a91432734d5087d16; version=99d6bdf3387734d75e3e34e94a58b8a355b7a9c8 <f9c5423855e3687262d881aeee5cfb3bc8577bff

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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-476NULL Pointer Dereference
T1499.004Application or System Exploitation

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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