CVE-2024-42068

Local privilege escalation via writable BPF memory

Published Jul 29, 2024 · Updated Aug 5, 2026

Memory-protection failure in the Linux kernel allows local users to gain kernel privileges through interpreted BPF programs. bpf_prog_lock_ro() ignored a set_memory_ro() failure, so a program could be accepted while its interpreter instructions and function pointer remained writable. An unprivileged process can reach the path through BPF-loading syscalls and induce allocation failure with memory pressure, enabling kernel memory reads, writes, arbitrary calls, or a crash.

CVSS severity7.8
High
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

Memory-protection failure in the Linux kernel allows local users to gain kernel privileges through interpreted BPF programs. bpf_prog_lock_ro() ignored a set_memory_ro() failure, so a program could be accepted while its interpreter instructions and function pointer remained writable. An unprivileged process can reach the path through BPF-loading syscalls and induce allocation failure with memory pressure, enabling kernel memory reads, writes, arbitrary calls, or a crash.

The record

CVE
CVE-2024-42068
Published
Jul 29, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 29, 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=3.18
  2. Affected versionversion=60a3b2253c413cf601783b070507d7dd6620c954 <05412471beba313ecded95aa17b25fe84bb2551a
  3. Affected versionversion=60a3b2253c413cf601783b070507d7dd6620c954 <7d2cc63eca0c993c99d18893214abf8f85d566d8
  4. Affected versionversion=60a3b2253c413cf601783b070507d7dd6620c954 <a359696856ca9409fb97655c5a8ef0f549cb6e03
  5. Affected versionversion=60a3b2253c413cf601783b070507d7dd6620c954 <e4f602e3ff749ba770bf8ff10196e18358de6720

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3.18; version=60a3b2253c413cf601783b070507d7dd6620c954 <05412471beba313ecded95aa17b25fe84bb2551a; version=60a3b2253c413cf601783b070507d7dd6620c954 <7d2cc63eca0c993c99d18893214abf8f85d566d8; version=60a3b2253c413cf601783b070507d7dd6620c954 <a359696856ca9409fb97655c5a8ef0f549cb6e03; version=60a3b2253c413cf601783b070507d7dd6620c954 <e4f602e3ff749ba770bf8ff10196e18358de6720

Published CVSS scores

7.8Linux CNACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
5.5UbuntuCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
4.4OracleCVSS:3.1/AV:L/AC:L/PR:H/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

T1068Exploitation for Privilege Escalation

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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