CVE-2022-29973Public exploit

Local deleted-data disclosure via unchecked valid length

Published May 2, 2022 · Updated Aug 3, 2024

Information disclosure in relan exFAT 1.3.0 allows local users to read deleted file data from a specially prepared exFAT volume. The fuse-exfat read path returns underlying cluster contents for offsets between ValidDataLength and DataLength instead of zero-filled bytes. Exposure requires readable access to a mounted volume whose clusters were allocated on Windows and left uncleared after detachment with an open file handle.

CVSS severity4.7
Medium
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in relan exFAT 1.3.0 allows local users to read deleted file data from a specially prepared exFAT volume. The fuse-exfat read path returns underlying cluster contents for offsets between ValidDataLength and DataLength instead of zero-filled bytes. Exposure requires readable access to a mounted volume whose clusters were allocated on Windows and left uncleared after detachment with an open file handle.

The record

CVE
CVE-2022-29973
Published
May 2, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-770, T1005
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 2, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

1.9NIST NVDAV:L/AC:M/Au:N/C:P/I:N/A:N
4.7NIST NVDCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A: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 exploitPublished

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
T1005Data from Local System

Public exploit references

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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