CVE-2024-53099

Kernel memory disclosure or crash via BPF fdinfo

Published Nov 25, 2024 · Updated Aug 5, 2026

Out-of-bounds read in the Linux kernel allows local users to disclose kernel memory or crash the system through BPF link fdinfo. The bpf_link_show_fdinfo() path uses link->type as an index into bpf_link_type_strs and passes the resulting pointer to seq_printf() without first validating the index. A local user must create or obtain a BPF link file descriptor and read its procfs fdinfo; the result is kernel-data disclosure or a kernel fault, with no memory-write primitive.

CVSS severity7.1
High
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

Out-of-bounds read in the Linux kernel allows local users to disclose kernel memory or crash the system through BPF link fdinfo. The bpf_link_show_fdinfo() path uses link->type as an index into bpf_link_type_strs and passes the resulting pointer to seq_printf() without first validating the index. A local user must create or obtain a BPF link file descriptor and read its procfs fdinfo; the result is kernel-data disclosure or a kernel fault, with no memory-write primitive.

The record

CVE
CVE-2024-53099
Published
Nov 25, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-125, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 25, 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

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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=5.7
  2. Affected versionversion=70ed506c3bbcfa846d4636b23051ca79fa4781f7 <24fec234d2ba9ca3c14e545ebe3fd6dcb47f074d
  3. Affected versionversion=70ed506c3bbcfa846d4636b23051ca79fa4781f7 <4e8074bb33d18f56af30a0252cb3606d27eb1c13
  4. Affected versionversion=70ed506c3bbcfa846d4636b23051ca79fa4781f7 <79f87a6ec39fb5968049a6775a528bf58b25c20a
  5. Affected versionversion=70ed506c3bbcfa846d4636b23051ca79fa4781f7 <8421d4c8762bd022cb491f2f0f7019ef51b4f0a7
  6. Affected versionversion=70ed506c3bbcfa846d4636b23051ca79fa4781f7 <b3eb1b6a9f745d6941b345f0fae014dc8bb06d36
  7. Affected versionversion=70ed506c3bbcfa846d4636b23051ca79fa4781f7 <d5092b0a1aaf35d77ebd8d33384d7930bec5cb5d

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.7; version=70ed506c3bbcfa846d4636b23051ca79fa4781f7 <24fec234d2ba9ca3c14e545ebe3fd6dcb47f074d; version=70ed506c3bbcfa846d4636b23051ca79fa4781f7 <4e8074bb33d18f56af30a0252cb3606d27eb1c13; version=70ed506c3bbcfa846d4636b23051ca79fa4781f7 <79f87a6ec39fb5968049a6775a528bf58b25c20a; version=70ed506c3bbcfa846d4636b23051ca79fa4781f7 <8421d4c8762bd022cb491f2f0f7019ef51b4f0a7; version=70ed506c3bbcfa846d4636b23051ca79fa4781f7 <b3eb1b6a9f745d6941b345f0fae014dc8bb06d36; version=70ed506c3bbcfa846d4636b23051ca79fa4781f7 <d5092b0a1aaf35d77ebd8d33384d7930bec5cb5d

Published CVSS scores

7.1NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
7.1Linux kernel CVE teamCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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-125Out-of-bounds Read
T1499.004Endpoint Denial of Service: Application 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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