CVE-2024-47742

Arbitrary file access via firmware path traversal

Published Oct 21, 2024 · Updated Aug 5, 2026

Path traversal in Linux kernel firmware_loader allows local users to load arbitrary files through crafted firmware names. _request_firmware() accepted '..' path components and resolved them outside firmware directories when a driver supplied an untrusted name. Reachability requires a device-derived name or CAP_NET_ADMIN in a user namespace controlling a suitable Ethernet device, enabling kernel-context access to unintended files.

CVSS severity7.8
High
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Linux kernel firmware_loader allows local users to load arbitrary files through crafted firmware names. _request_firmware() accepted '..' path components and resolved them outside firmware directories when a driver supplied an untrusted name. Reachability requires a device-derived name or CAP_NET_ADMIN in a user namespace controlling a suitable Ethernet device, enabling kernel-context access to unintended files.

The record

CVE
CVE-2024-47742
Published
Oct 21, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-22, T1005
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 21, 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=3.7
  2. Affected versionversion=abb139e75c2cdbb955e840d6331cb5863e409d0e <28f1cd94d3f1092728fb775a0fe26c5f1ac2ebeb
  3. Affected versionversion=abb139e75c2cdbb955e840d6331cb5863e409d0e <3d2411f4edcb649eaf232160db459bb4770b5251
  4. Affected versionversion=abb139e75c2cdbb955e840d6331cb5863e409d0e <6c4e13fdfcab34811c3143a0a03c05fec4e870ec
  5. Affected versionversion=abb139e75c2cdbb955e840d6331cb5863e409d0e <7420c1bf7fc784e587b87329cc6dfa3dca537aa4
  6. Affected versionversion=abb139e75c2cdbb955e840d6331cb5863e409d0e <9b1ca33ebd05b3acef5b976c04e5e791af93ce1b
  7. Affected versionversion=abb139e75c2cdbb955e840d6331cb5863e409d0e <a77fc4acfd49fc6076e565445b2bc5fdc3244da4
  8. Affected versionversion=abb139e75c2cdbb955e840d6331cb5863e409d0e <c30558e6c5c9ad6c86459d9acce1520ceeab9ea6
  9. Affected versionversion=abb139e75c2cdbb955e840d6331cb5863e409d0e <d1768e5535d3ded59f888637016e6f821f4e069f
  10. Affected versionversion=abb139e75c2cdbb955e840d6331cb5863e409d0e <f0e5311aa8022107d63c54e2f03684ec097d1394

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3.7; version=abb139e75c2cdbb955e840d6331cb5863e409d0e <28f1cd94d3f1092728fb775a0fe26c5f1ac2ebeb; version=abb139e75c2cdbb955e840d6331cb5863e409d0e <3d2411f4edcb649eaf232160db459bb4770b5251; version=abb139e75c2cdbb955e840d6331cb5863e409d0e <6c4e13fdfcab34811c3143a0a03c05fec4e870ec; version=abb139e75c2cdbb955e840d6331cb5863e409d0e <7420c1bf7fc784e587b87329cc6dfa3dca537aa4; version=abb139e75c2cdbb955e840d6331cb5863e409d0e <9b1ca33ebd05b3acef5b976c04e5e791af93ce1b; version=abb139e75c2cdbb955e840d6331cb5863e409d0e <a77fc4acfd49fc6076e565445b2bc5fdc3244da4; version=abb139e75c2cdbb955e840d6331cb5863e409d0e <c30558e6c5c9ad6c86459d9acce1520ceeab9ea6; version=abb139e75c2cdbb955e840d6331cb5863e409d0e <d1768e5535d3ded59f888637016e6f821f4e069f; version=abb139e75c2cdbb955e840d6331cb5863e409d0e <f0e5311aa8022107d63c54e2f03684ec097d1394

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1005Data from Local System

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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