CVE-2026-52913

Local kernel crash via stale mesh interface

Published Jun 24, 2026 · Updated Jun 24, 2026

NULL pointer dereference in Linux Kernel batman-adv OGMv2 handling allows local users to crash affected kernels by disabling a mesh interface. batadv_v_ogm_queue_on_if() unconditionally passes a disabled interface's NULL mesh_iface pointer to netdev_priv() after batadv_v_ogm_send_meshif() queues an OGM for that interface. Exploitation requires local access and an active batman-adv OGMv2 mesh interface that is disabled while queued OGM work still references it; the bounded consequence is a kernel crash.

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

NULL pointer dereference in Linux Kernel batman-adv OGMv2 handling allows local users to crash affected kernels by disabling a mesh interface. batadv_v_ogm_queue_on_if() unconditionally passes a disabled interface's NULL mesh_iface pointer to netdev_priv() after batadv_v_ogm_send_meshif() queues an OGM for that interface. Exploitation requires local access and an active batman-adv OGMv2 mesh interface that is disabled while queued OGM work still references it; the bounded consequence is a kernel crash.

The record

CVE
CVE-2026-52913
Published
Jun 24, 2026
Updated
Jun 24, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-476, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 24, 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=0da0035942d47766c32843143fb5dba7a29cb48c <040fe8eb34624002071dd21de9824dfe668ce65d
  2. Affected versionversion=0da0035942d47766c32843143fb5dba7a29cb48c <1be1e99cbd5b74a69d3f92200ca87cf1bce852db
  3. Affected versionversion=0da0035942d47766c32843143fb5dba7a29cb48c <31dcb9711abd1dcd2080d9fac05c79dd9997d6bf
  4. Affected versionversion=0da0035942d47766c32843143fb5dba7a29cb48c <4ff461af943efb5e74d09942d5ffee7644d1e1fe
  5. Affected versionversion=0da0035942d47766c32843143fb5dba7a29cb48c <70c9f6ab0d8f785087fb74fb85464a9a5288bfdb
  6. Affected versionversion=0da0035942d47766c32843143fb5dba7a29cb48c <aad70db50ea3d7dfe30e402b889ff075a293b287
  7. Affected versionversion=0da0035942d47766c32843143fb5dba7a29cb48c <d7391a2b854a62235539c68e9cbf6fc7910a8e9a
  8. Affected versionversion=0da0035942d47766c32843143fb5dba7a29cb48c <f8ce8b8331a1bc44ad4905886a482214d428b253
  9. Affected versionversion=4.6

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=0da0035942d47766c32843143fb5dba7a29cb48c <040fe8eb34624002071dd21de9824dfe668ce65d; version=0da0035942d47766c32843143fb5dba7a29cb48c <1be1e99cbd5b74a69d3f92200ca87cf1bce852db; version=0da0035942d47766c32843143fb5dba7a29cb48c <31dcb9711abd1dcd2080d9fac05c79dd9997d6bf; version=0da0035942d47766c32843143fb5dba7a29cb48c <4ff461af943efb5e74d09942d5ffee7644d1e1fe; version=0da0035942d47766c32843143fb5dba7a29cb48c <70c9f6ab0d8f785087fb74fb85464a9a5288bfdb; version=0da0035942d47766c32843143fb5dba7a29cb48c <aad70db50ea3d7dfe30e402b889ff075a293b287; version=0da0035942d47766c32843143fb5dba7a29cb48c <d7391a2b854a62235539c68e9cbf6fc7910a8e9a; version=0da0035942d47766c32843143fb5dba7a29cb48c <f8ce8b8331a1bc44ad4905886a482214d428b253; version=4.6

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
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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