CVE-2025-37787

Local system crash via unregistered devlink region

Published May 1, 2025 · Updated May 11, 2026

NULL pointer dereference in affected Linux kernel versions allows local users to crash systems by unbinding the mv88e6xxx driver. devlink_region_destroy() receives a NULL global-region pointer after setup conditionally skips registering STU or PVT regions. The path affects systems using mv88e6xxx chips without the corresponding STU or PVT capability and requires local access to unbind the driver.

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 systems by unbinding the mv88e6xxx driver. devlink_region_destroy() receives a NULL global-region pointer after setup conditionally skips registering STU or PVT regions. The path affects systems using mv88e6xxx chips without the corresponding STU or PVT capability and requires local access to unbind the driver.

The record

CVE
CVE-2025-37787
Published
May 1, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1529
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 1, 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

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=5.13
  2. Affected versionversion=836021a2d0e0e4c90b895a35bd9c0342071855fb <3665695e3572239dc233216f06b41f40cc771889
  3. Affected versionversion=836021a2d0e0e4c90b895a35bd9c0342071855fb <5f5e95945bb1e08be7655da6acba648274db457d
  4. Affected versionversion=836021a2d0e0e4c90b895a35bd9c0342071855fb <8ccdf5e24b276848eefb2755e05ff0f005a0c4a1
  5. Affected versionversion=836021a2d0e0e4c90b895a35bd9c0342071855fb <b3c70dfe51f10df60db2646c08cebd24bcdc5247
  6. Affected versionversion=836021a2d0e0e4c90b895a35bd9c0342071855fb <bbb80f004f7a90c3dcaacc982c59967457254a05
  7. Affected versionversion=836021a2d0e0e4c90b895a35bd9c0342071855fb <c84f6ce918a9e6f4996597cbc62536bbf2247c96

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.13; version=836021a2d0e0e4c90b895a35bd9c0342071855fb <3665695e3572239dc233216f06b41f40cc771889; version=836021a2d0e0e4c90b895a35bd9c0342071855fb <5f5e95945bb1e08be7655da6acba648274db457d; version=836021a2d0e0e4c90b895a35bd9c0342071855fb <8ccdf5e24b276848eefb2755e05ff0f005a0c4a1; version=836021a2d0e0e4c90b895a35bd9c0342071855fb <b3c70dfe51f10df60db2646c08cebd24bcdc5247; version=836021a2d0e0e4c90b895a35bd9c0342071855fb <bbb80f004f7a90c3dcaacc982c59967457254a05; version=836021a2d0e0e4c90b895a35bd9c0342071855fb <c84f6ce918a9e6f4996597cbc62536bbf2247c96

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
T1529System Shutdown/Reboot

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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