CVE-2025-37987

Service interruption via adminq request queue overflow

Published May 20, 2025 · Updated May 11, 2026

Denial of service in the Linux kernel pds_core driver allows local users to stop firmware command processing through adminq overflow. Sequential commands can remain outstanding while completions occur in another context, allowing more requests than the firmware's 16-entry backing queue can hold. Access to a host using the pds_core driver with an AMD/Pensando DSC adapter is required; a stuck queue stops subsequent commands and completions.

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

Denial of service in the Linux kernel pds_core driver allows local users to stop firmware command processing through adminq overflow. Sequential commands can remain outstanding while completions occur in another context, allowing more requests than the firmware's 16-entry backing queue can hold. Access to a host using the pds_core driver with an AMD/Pensando DSC adapter is required; a stuck queue stops subsequent commands and completions.

The record

CVE
CVE-2025-37987
Published
May 20, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 20, 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=45d76f492938cdc27ddadc16e1e75103f4cfbf56 <2982e07ad72b48eb12c29a87a3f2126ea552688c
  2. Affected versionversion=45d76f492938cdc27ddadc16e1e75103f4cfbf56 <517f928cc0c133472618cbba18382b46f5f71ba3
  3. Affected versionversion=45d76f492938cdc27ddadc16e1e75103f4cfbf56 <5e3dc65675faad846420d24762e4faadc12d9392
  4. Affected versionversion=45d76f492938cdc27ddadc16e1e75103f4cfbf56 <d9e2f070d8af60f2c8c02b2ddf0a9e90b4e9220c
  5. Affected versionversion=6.4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=45d76f492938cdc27ddadc16e1e75103f4cfbf56 <2982e07ad72b48eb12c29a87a3f2126ea552688c; version=45d76f492938cdc27ddadc16e1e75103f4cfbf56 <517f928cc0c133472618cbba18382b46f5f71ba3; version=45d76f492938cdc27ddadc16e1e75103f4cfbf56 <5e3dc65675faad846420d24762e4faadc12d9392; version=45d76f492938cdc27ddadc16e1e75103f4cfbf56 <d9e2f070d8af60f2c8c02b2ddf0a9e90b4e9220c; version=6.4

Published CVSS scores

5.5Canonical UbuntuCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5NVDCVSS: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

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

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Your stack

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