CVE-2024-26825

Service interruption via unreleased NFC reassembly buffers

Published Apr 17, 2024 · Updated May 11, 2026

Resource leak in the Linux kernel NFC NCI subsystem allows local users to interrupt service by leaving fragmented packets incomplete. The NCI receive path retains rx_data_reassembly for fragmented packets, but device cleanup deallocates the NCI device without freeing that skb. Low-privileged local access and an active NFC NCI device are required; repeated triggers can exhaust kernel memory and disrupt availability.

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

Resource leak in the Linux kernel NFC NCI subsystem allows local users to interrupt service by leaving fragmented packets incomplete. The NCI receive path retains rx_data_reassembly for fragmented packets, but device cleanup deallocates the NCI device without freeing that skb. Low-privileged local access and an active NFC NCI device are required; repeated triggers can exhaust kernel memory and disrupt availability.

The record

CVE
CVE-2024-26825
Published
Apr 17, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-459, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 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=3.2
  2. Affected versionversion=6a2968aaf50c7a22fced77a5e24aa636281efca8 <16d3f507b0fa70453dc54550df093d6e9ac630c1
  3. Affected versionversion=6a2968aaf50c7a22fced77a5e24aa636281efca8 <2f6d16f0520d6505241629ee2f5c131b547d5f9d
  4. Affected versionversion=6a2968aaf50c7a22fced77a5e24aa636281efca8 <471c9ede8061357b43a116fa692e70d91941ac23
  5. Affected versionversion=6a2968aaf50c7a22fced77a5e24aa636281efca8 <5c0c5ffaed73cbae6c317374dc32ba6cacc60895
  6. Affected versionversion=6a2968aaf50c7a22fced77a5e24aa636281efca8 <71349abe3aba7fedcab5b3fcd7aa82371fb5ccbf
  7. Affected versionversion=6a2968aaf50c7a22fced77a5e24aa636281efca8 <7e9a8498658b398bf11b8e388005fa54e40aed81
  8. Affected versionversion=6a2968aaf50c7a22fced77a5e24aa636281efca8 <a3d90fb5c23f29ba59c04005ae76c5228cef2be9
  9. Affected versionversion=6a2968aaf50c7a22fced77a5e24aa636281efca8 <bfb007aebe6bff451f7f3a4be19f4f286d0d5d9c

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3.2; version=6a2968aaf50c7a22fced77a5e24aa636281efca8 <16d3f507b0fa70453dc54550df093d6e9ac630c1; version=6a2968aaf50c7a22fced77a5e24aa636281efca8 <2f6d16f0520d6505241629ee2f5c131b547d5f9d; version=6a2968aaf50c7a22fced77a5e24aa636281efca8 <471c9ede8061357b43a116fa692e70d91941ac23; version=6a2968aaf50c7a22fced77a5e24aa636281efca8 <5c0c5ffaed73cbae6c317374dc32ba6cacc60895; version=6a2968aaf50c7a22fced77a5e24aa636281efca8 <71349abe3aba7fedcab5b3fcd7aa82371fb5ccbf; version=6a2968aaf50c7a22fced77a5e24aa636281efca8 <7e9a8498658b398bf11b8e388005fa54e40aed81; version=6a2968aaf50c7a22fced77a5e24aa636281efca8 <a3d90fb5c23f29ba59c04005ae76c5228cef2be9; version=6a2968aaf50c7a22fced77a5e24aa636281efca8 <bfb007aebe6bff451f7f3a4be19f4f286d0d5d9c

Published CVSS scores

5.5CanonicalCVSS: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-459Incomplete Cleanup
T1499.004Application or System Exploitation

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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