CVE-2026-74706

System crash via bnge release NULL dereference

Published Aug 22, 2026 · Updated Aug 22, 2026

NULL pointer dereference in Linux 6.19 through 7.1.8 allows attackers to crash the system during bnge auxiliary-device setup. In bnge_aux_dev_release(), the error path dereferences aux_priv->auxr_dev->pdev after auxr_dev allocation has failed, leaving auxr_dev NULL. The condition requires the bnge driver and an allocation failure during auxiliary-device setup; the resulting kernel exception interrupts the host.

CVSS severity4.7
Medium
EPSS probability0.16%
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 Linux 6.19 through 7.1.8 allows attackers to crash the system during bnge auxiliary-device setup. In bnge_aux_dev_release(), the error path dereferences aux_priv->auxr_dev->pdev after auxr_dev allocation has failed, leaving auxr_dev NULL. The condition requires the bnge driver and an allocation failure during auxiliary-device setup; the resulting kernel exception interrupts the host.

The record

CVE
CVE-2026-74706
Published
Aug 22, 2026
Updated
Aug 22, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Aug 22, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 22, 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=6.19
  2. Affected versionversion=8ac050ec3b1c0dcb5e89cf86fe2ebe0afcc73554 <1cb4298810e27e037d3ca07286ecbb97e89ba58d
  3. Affected versionversion=8ac050ec3b1c0dcb5e89cf86fe2ebe0afcc73554 <83ef2f3cab7fe6dd9155cd598dc64be524d963a9

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=6.19; version=8ac050ec3b1c0dcb5e89cf86fe2ebe0afcc73554 <1cb4298810e27e037d3ca07286ecbb97e89ba58d; version=8ac050ec3b1c0dcb5e89cf86fe2ebe0afcc73554 <83ef2f3cab7fe6dd9155cd598dc64be524d963a9

Published CVSS scores

4.7Amazon LinuxCVSS:3.1/AV:L/AC:H/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
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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