CVE-2023-54183

Local denial of service via firmware-node reference leak

Published Dec 30, 2025 · Updated Dec 30, 2025

Resource leak in the Linux kernel V4L2 core allows local users to exhaust resources by parsing a firmware-node link with a missing endpoint. On the fwnode_graph_get_remote_endpoint() failure path, v4l2_fwnode_parse_link() calls fwnode_handle_put() on the new NULL value instead of releasing the earlier local-node reference. Exploitation requires local low-privilege access and a high-complexity failure path; the published impact is availability loss only.

CVSS severity5.7
Medium
EPSS probability0.21%
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 V4L2 core allows local users to exhaust resources by parsing a firmware-node link with a missing endpoint. On the fwnode_graph_get_remote_endpoint() failure path, v4l2_fwnode_parse_link() calls fwnode_handle_put() on the new NULL value instead of releasing the earlier local-node reference. Exploitation requires local low-privilege access and a high-complexity failure path; the published impact is availability loss only.

The record

CVE
CVE-2023-54183
Published
Dec 30, 2025
Updated
Dec 30, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 30, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 30, 2025Record 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=4.13
  2. Affected versionversion=ca50c197bd9610ea984cfc0dc6855f183cbb46f8 <2342942331e1f034ff58f293e10d0d9b7581601f
  3. Affected versionversion=ca50c197bd9610ea984cfc0dc6855f183cbb46f8 <25afb3e03bf8ab02567af4b6ffbfd6250a91a9f8
  4. Affected versionversion=ca50c197bd9610ea984cfc0dc6855f183cbb46f8 <4bc5ffaf8ac4f3e7a1fcd10a0a0e7b022b694877
  5. Affected versionversion=ca50c197bd9610ea984cfc0dc6855f183cbb46f8 <caf058833b6f3fe7beabf738110f79bb987c8fff
  6. Affected versionversion=ca50c197bd9610ea984cfc0dc6855f183cbb46f8 <d7b13edd4cb4bfa335b6008ab867ac28582d3e5c
  7. Affected versionversion=ca50c197bd9610ea984cfc0dc6855f183cbb46f8 <d8a8f75fce049bdb3144b607deefe51e996b9660
  8. Affected versionversion=ca50c197bd9610ea984cfc0dc6855f183cbb46f8 <e8a1cd87bb9fa3149ee112ecb8058908dc9b520e
  9. Affected versionversion=ca50c197bd9610ea984cfc0dc6855f183cbb46f8 <ed1696f7f92e8404940d51dec80a123aa18163a8

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.13; version=ca50c197bd9610ea984cfc0dc6855f183cbb46f8 <2342942331e1f034ff58f293e10d0d9b7581601f; version=ca50c197bd9610ea984cfc0dc6855f183cbb46f8 <25afb3e03bf8ab02567af4b6ffbfd6250a91a9f8; version=ca50c197bd9610ea984cfc0dc6855f183cbb46f8 <4bc5ffaf8ac4f3e7a1fcd10a0a0e7b022b694877; version=ca50c197bd9610ea984cfc0dc6855f183cbb46f8 <caf058833b6f3fe7beabf738110f79bb987c8fff; version=ca50c197bd9610ea984cfc0dc6855f183cbb46f8 <d7b13edd4cb4bfa335b6008ab867ac28582d3e5c; version=ca50c197bd9610ea984cfc0dc6855f183cbb46f8 <d8a8f75fce049bdb3144b607deefe51e996b9660; version=ca50c197bd9610ea984cfc0dc6855f183cbb46f8 <e8a1cd87bb9fa3149ee112ecb8058908dc9b520e; version=ca50c197bd9610ea984cfc0dc6855f183cbb46f8 <ed1696f7f92e8404940d51dec80a123aa18163a8

Published CVSS scores

4.7SUSECVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
4.7Amazon LinuxCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
5.7SUSECVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

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

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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