CVE-2022-48682

Arbitrary file deletion via symlink race

Published Apr 26, 2024 · Updated Oct 27, 2024

TOCTOU in FDUPES before 2.2.0 allows local users to delete arbitrary files by replacing a checked duplicate path with a symlink. The deletefiles routine called remove() on a stored path without rechecking that its device, inode, timestamps, and size still matched the scanned file. Exploitation requires local filesystem access, low privileges, winning the race, and user interaction during duplicate deletion; successful abuse deletes any file permitted by the FDUPES process.

CVSS severity6.0
Medium
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

TOCTOU in FDUPES before 2.2.0 allows local users to delete arbitrary files by replacing a checked duplicate path with a symlink. The deletefiles routine called remove() on a stored path without rechecking that its device, inode, timestamps, and size still matched the scanned file. Exploitation requires local filesystem access, low privileges, winning the race, and user interaction during duplicate deletion; successful abuse deletes any file permitted by the FDUPES process.

The record

CVE
CVE-2022-48682
Published
Apr 26, 2024
Updated
Oct 27, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-367, T1070.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 26, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 27, 2024Record 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?

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

6.0MITRECVSS:3.1/AC:H/AV:L/A:H/C:N/I:H/PR:L/S:U/UI:R

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-367Time-of-check Time-of-use (TOCTOU) Race Condition
T1070.004File Deletion

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo