CVE-2024-27417

Local denial of service via net namespace leak

Published May 17, 2024 · Updated May 11, 2026

Missing memory release in the Linux kernel IPv6 address-query path allows local users to exhaust resources through crafted netlink requests. When inet6_rtm_getaddr() receives IFA_TARGET_NETNSID without IFA_ADDRESS or IFA_LOCAL, its error path returns EINVAL without dropping the acquired struct net reference. Low-privileged local access is required, and repeated requests can deplete kernel resources and interrupt host services.

CVSS severity5.5
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing memory release in the Linux kernel IPv6 address-query path allows local users to exhaust resources through crafted netlink requests. When inet6_rtm_getaddr() receives IFA_TARGET_NETNSID without IFA_ADDRESS or IFA_LOCAL, its error path returns EINVAL without dropping the acquired struct net reference. Low-privileged local access is required, and repeated requests can deplete kernel resources and interrupt host services.

The record

CVE
CVE-2024-27417
Published
May 17, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-401, T1499.001
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 17, 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=4.20
  2. Affected versionversion=6ecf4c37eb3e89b0832c9616089a5cdca3747da7 <10bfd453da64a057bcfd1a49fb6b271c48653cdb
  3. Affected versionversion=6ecf4c37eb3e89b0832c9616089a5cdca3747da7 <1b0998fdd85776775d975d0024bca227597e836a
  4. Affected versionversion=6ecf4c37eb3e89b0832c9616089a5cdca3747da7 <33a1b6bfef6def2068c8703403759024ce17053e
  5. Affected versionversion=6ecf4c37eb3e89b0832c9616089a5cdca3747da7 <44112bc5c74e64f28f5a9127dc34066c7a09bd0f
  6. Affected versionversion=6ecf4c37eb3e89b0832c9616089a5cdca3747da7 <810fa7d5e5202fcfb22720304b755f1bdfd4c174
  7. Affected versionversion=6ecf4c37eb3e89b0832c9616089a5cdca3747da7 <8a54834c03c30e549c33d5da0975f3e1454ec906
  8. Affected versionversion=6ecf4c37eb3e89b0832c9616089a5cdca3747da7 <9d4ffb5b9d879a75e4f7460e8b10e756b4dfb132

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.20; version=6ecf4c37eb3e89b0832c9616089a5cdca3747da7 <10bfd453da64a057bcfd1a49fb6b271c48653cdb; version=6ecf4c37eb3e89b0832c9616089a5cdca3747da7 <1b0998fdd85776775d975d0024bca227597e836a; version=6ecf4c37eb3e89b0832c9616089a5cdca3747da7 <33a1b6bfef6def2068c8703403759024ce17053e; version=6ecf4c37eb3e89b0832c9616089a5cdca3747da7 <44112bc5c74e64f28f5a9127dc34066c7a09bd0f; version=6ecf4c37eb3e89b0832c9616089a5cdca3747da7 <810fa7d5e5202fcfb22720304b755f1bdfd4c174; version=6ecf4c37eb3e89b0832c9616089a5cdca3747da7 <8a54834c03c30e549c33d5da0975f3e1454ec906; version=6ecf4c37eb3e89b0832c9616089a5cdca3747da7 <9d4ffb5b9d879a75e4f7460e8b10e756b4dfb132

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 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

CWE-401Missing Release of Memory after Effective Lifetime
T1499.001Endpoint Denial of Service: OS Exhaustion Flood

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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