CVE-2024-50038

Kernel warning via cross-family xtables invocation

Published Oct 21, 2024 · Updated May 11, 2026

Improper xtables family registration in Linux from 2.6.30 through 6.12-rc2 allows local users to trigger a kernel warning via ebtables. Several matches and targets register for NFPROTO_UNSPEC even though they assume an IPv4 or IPv6 network header or return verdict values incompatible with the ebtables traverser. Reaching the flaw requires a local caller able to invoke xtables through set/getsockopt interfaces, and the published reproducer identifies the observed consequence as a kernel warning.

CVSS severityUnavailable
Unscored
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper xtables family registration in Linux from 2.6.30 through 6.12-rc2 allows local users to trigger a kernel warning via ebtables. Several matches and targets register for NFPROTO_UNSPEC even though they assume an IPv4 or IPv6 network header or return verdict values incompatible with the ebtables traverser. Reaching the flaw requires a local caller able to invoke xtables through set/getsockopt interfaces, and the published reproducer identifies the observed consequence as a kernel warning.

The record

CVE
CVE-2024-50038
Published
Oct 21, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Oct 21, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 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=0269ea4937343536ec7e85649932bc8c9686ea78 <0bfcb7b71e735560077a42847f69597ec7dcc326
  2. Affected versionversion=0269ea4937343536ec7e85649932bc8c9686ea78 <4cdc55ec6222bb195995cc58f7cb46e4d8907056
  3. Affected versionversion=0269ea4937343536ec7e85649932bc8c9686ea78 <85ff9a0f793ca52c527e75cd40a69c948627ebde
  4. Affected versionversion=0269ea4937343536ec7e85649932bc8c9686ea78 <8f482bb7e27b37f1f734bb9a8eeb28b23d59d189
  5. Affected versionversion=0269ea4937343536ec7e85649932bc8c9686ea78 <997f67d813ce0cf5eb3cdb8f124da68141e91b6c
  6. Affected versionversion=2.6.30

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=0269ea4937343536ec7e85649932bc8c9686ea78 <0bfcb7b71e735560077a42847f69597ec7dcc326; version=0269ea4937343536ec7e85649932bc8c9686ea78 <4cdc55ec6222bb195995cc58f7cb46e4d8907056; version=0269ea4937343536ec7e85649932bc8c9686ea78 <85ff9a0f793ca52c527e75cd40a69c948627ebde; version=0269ea4937343536ec7e85649932bc8c9686ea78 <8f482bb7e27b37f1f734bb9a8eeb28b23d59d189; version=0269ea4937343536ec7e85649932bc8c9686ea78 <997f67d813ce0cf5eb3cdb8f124da68141e91b6c; version=2.6.30

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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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