CVE-2024-53147

Filesystem corruption via invalid exFAT start cluster

Published Dec 24, 2024 · Updated Aug 5, 2026

Out-of-bounds access in the Linux exFAT driver allows local users to corrupt file systems through a malformed directory entry. The exfat_find function trusts a nonzero stream size without validating the entry start_clu, so an EOF cluster leaves the cached free-entry index beyond directory bounds. Triggering it requires local access that causes the kernel to parse a crafted or corrupted exFAT filesystem; the documented consequence is further filesystem corruption.

CVSS severity7.1
High
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

Out-of-bounds access in the Linux exFAT driver allows local users to corrupt file systems through a malformed directory entry. The exfat_find function trusts a nonzero stream size without validating the entry start_clu, so an EOF cluster leaves the cached free-entry index beyond directory bounds. Triggering it requires local access that causes the kernel to parse a crafted or corrupted exFAT filesystem; the documented consequence is further filesystem corruption.

The record

CVE
CVE-2024-53147
Published
Dec 24, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-125, T1485
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 24, 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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003 <184fa506e392eb78364d9283c961217ff2c0617b
  2. Affected versionversion=1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003 <3ddd1cb2b458ff6a193bc845f408dfff217db29e
  3. Affected versionversion=1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003 <a0120d6463368378539ef928cf067d02372efb8c
  4. Affected versionversion=5.7

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003 <184fa506e392eb78364d9283c961217ff2c0617b; version=1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003 <3ddd1cb2b458ff6a193bc845f408dfff217db29e; version=1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003 <a0120d6463368378539ef928cf067d02372efb8c; version=5.7

Published CVSS scores

7.1CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
6.3SUSECVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H
7.1NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
5.8SUSECVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
T1485Data Destruction

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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