CVE-2026-43310

System hang via concurrent VPU decoding

Published May 8, 2026 · Updated May 8, 2026

Denial of service in the Linux Kernel media subsystem before 6.19.6 or 7.0 allows attackers to hang NXP MX8MQ systems. Separate v4l2_m2m_dev schedulers in the Verisilicon Hantro driver permit overlapping G1 and G2 decoding, violate the hardware constraint, and trigger a VPU bus error. Exploitation requires local access and concurrent H.264 and HEVC decode workloads on NXP MX8MQ hardware; resulting effects are corrupted frames or a system hang.

CVSS severity5.5
Medium
EPSS probability0.11%
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 media subsystem before 6.19.6 or 7.0 allows attackers to hang NXP MX8MQ systems. Separate v4l2_m2m_dev schedulers in the Verisilicon Hantro driver permit overlapping G1 and G2 decoding, violate the hardware constraint, and trigger a VPU bus error. Exploitation requires local access and concurrent H.264 and HEVC decode workloads on NXP MX8MQ hardware; resulting effects are corrupted frames or a system hang.

The record

CVE
CVE-2026-43310
Published
May 8, 2026
Updated
May 8, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
T1499.004
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=5.14
  2. Affected versionversion=cb5dd5a0fa518dff14ff2b90837c3c8f98f4dd5c <286d629d10640bc22f3bf46aa4f356eb7975e862
  3. Affected versionversion=cb5dd5a0fa518dff14ff2b90837c3c8f98f4dd5c <e0203ddf9af7c8e170e1e99ce83b4dc07f0cd765

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=5.14; version=cb5dd5a0fa518dff14ff2b90837c3c8f98f4dd5c <286d629d10640bc22f3bf46aa4f356eb7975e862; version=cb5dd5a0fa518dff14ff2b90837c3c8f98f4dd5c <e0203ddf9af7c8e170e1e99ce83b4dc07f0cd765

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499.004Endpoint Denial of Service: Application or System Exploitation

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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