CVE-2024-26808Public exploit

Local privilege escalation via stale netdevice reference

Published Apr 4, 2024 · Updated Aug 5, 2026

Use-after-free in Linux kernel netfilter allows local users to gain root privileges via nftables and network-device operations. An inet ingress base chain retains its raw net_device pointer after NETDEV_UNREGISTER, so later chain dumps or deletion dereference reclaimed kernel memory. A low-privileged local user needs user namespaces and CONFIG_NF_TABLES, then can obtain CAP_NET_ADMIN in a new network namespace to leak kernel data, panic the kernel, or execute code as root.

CVSS severity7.8
High
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in Linux kernel netfilter allows local users to gain root privileges via nftables and network-device operations. An inet ingress base chain retains its raw net_device pointer after NETDEV_UNREGISTER, so later chain dumps or deletion dereference reclaimed kernel memory. A low-privileged local user needs user namespaces and CONFIG_NF_TABLES, then can obtain CAP_NET_ADMIN in a new network namespace to leak kernel data, panic the kernel, or execute code as root.

The record

CVE
CVE-2024-26808
Published
Apr 4, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 4, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.10
  2. Affected versionversion=60a3815da702fd9e4759945f26cce5c47d3967ad <01acb2e8666a6529697141a6017edbf206921913
  3. Affected versionversion=60a3815da702fd9e4759945f26cce5c47d3967ad <36a0a80f32209238469deb481967d777a3d539ee
  4. Affected versionversion=60a3815da702fd9e4759945f26cce5c47d3967ad <70f17b48c86622217a58d5099d29242fc9adac58
  5. Affected versionversion=60a3815da702fd9e4759945f26cce5c47d3967ad <9489e214ea8f2a90345516016aa51f2db3a8cc2f
  6. Affected versionversion=60a3815da702fd9e4759945f26cce5c47d3967ad <af149a46890e8285d1618bd68b8d159bdb87fdb3
  7. Affected versionversion=60a3815da702fd9e4759945f26cce5c47d3967ad <e5888acbf1a3d8d021990ce6c6061fd5b2bb21b4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.10; version=60a3815da702fd9e4759945f26cce5c47d3967ad <01acb2e8666a6529697141a6017edbf206921913; version=60a3815da702fd9e4759945f26cce5c47d3967ad <36a0a80f32209238469deb481967d777a3d539ee; version=60a3815da702fd9e4759945f26cce5c47d3967ad <70f17b48c86622217a58d5099d29242fc9adac58; version=60a3815da702fd9e4759945f26cce5c47d3967ad <9489e214ea8f2a90345516016aa51f2db3a8cc2f; version=60a3815da702fd9e4759945f26cce5c47d3967ad <af149a46890e8285d1618bd68b8d159bdb87fdb3; version=60a3815da702fd9e4759945f26cce5c47d3967ad <e5888acbf1a3d8d021990ce6c6061fd5b2bb21b4

Published CVSS scores

7.8Linux Kernel CVE TeamCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
5.5CISACVSS: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 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 exploitPublished

Weakness, pattern, technique

T1068Exploitation for Privilege Escalation

Public exploit references

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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