CVE-2026-43287

System-wide memory exhaustion via uncharged DRM blobs

Published May 8, 2026 · Updated May 8, 2026

Resource exhaustion in affected Linux Kernel releases allows local users to trigger system-wide out-of-memory through a DRM ioctl. DRM_IOCTL_MODE_CREATEPROPBLOB allocates arbitrary-sized property-blob data without charging the allocation to the caller's memory cgroup. Low-privileged local access is sufficient to bypass cgroup memory limits and consume kernel memory until availability is interrupted.

CVSS severity5.5
Medium
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource exhaustion in affected Linux Kernel releases allows local users to trigger system-wide out-of-memory through a DRM ioctl. DRM_IOCTL_MODE_CREATEPROPBLOB allocates arbitrary-sized property-blob data without charging the allocation to the caller's memory cgroup. Low-privileged local access is sufficient to bypass cgroup memory limits and consume kernel memory until availability is interrupted.

The record

CVE
CVE-2026-43287
Published
May 8, 2026
Updated
May 8, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-401, T1499.001
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 8, 2026CVE publishedPublication date reported by the CVE source.
  2. May 8, 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=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <26b4309a3ab82a0697751cde52eb336c29c19035
  2. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <405fd652d8fedff219a8f48daf8f20e881e303ab
  3. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <815fa29cab3c67bebb9d0b5f41145cdd3a14d04d
  4. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <866e0c1a9e7244d58ed74853cb22b81e1900cfdd
  5. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <8e1664b9ee43608eb973d357ae5d858d30cbc9ca
  6. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b6117210ed349356f8e6027ff020b4d620bca42b
  7. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <bbfaa5761f589a81031b493cb01275a990d6fb25
  8. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <cb8b9a1755fe9f38e4fb7f287486d7e7fab3dba4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <26b4309a3ab82a0697751cde52eb336c29c19035; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <405fd652d8fedff219a8f48daf8f20e881e303ab; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <815fa29cab3c67bebb9d0b5f41145cdd3a14d04d; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <866e0c1a9e7244d58ed74853cb22b81e1900cfdd; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <8e1664b9ee43608eb973d357ae5d858d30cbc9ca; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b6117210ed349356f8e6027ff020b4d620bca42b; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <bbfaa5761f589a81031b493cb01275a990d6fb25; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <cb8b9a1755fe9f38e4fb7f287486d7e7fab3dba4

Published CVSS scores

5.5CanonicalCVSS: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-401Missing Release of Memory after Effective Lifetime
T1499.001OS Exhaustion Flood

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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