CVE-2025-54409Public exploit

Local crash via malformed xattr database fields

Published Aug 14, 2025 · Updated Nov 4, 2025

Null pointer dereference in AIDE 0.13 through 0.19.1 allows local users to crash report printing or database listing via crafted xattrs. The db_char2line parser fails to validate Base64 decoding and comma-delimited fields, then dereferences a null xattr value. Exploitation requires write access to an xattr-capable file system, an xattr-enabled build, database generation, and a second AIDE run that lists or reports the value.

CVSS severity6.2
Medium
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

Null pointer dereference in AIDE 0.13 through 0.19.1 allows local users to crash report printing or database listing via crafted xattrs. The db_char2line parser fails to validate Base64 decoding and comma-delimited fields, then dereferences a null xattr value. Exploitation requires write access to an xattr-capable file system, an xattr-enabled build, database generation, and a second AIDE run that lists or reports the value.

The record

CVE
CVE-2025-54409
Published
Aug 14, 2025
Updated
Nov 4, 2025
Vendor
AIDE
Product
AIDE
Classifications
T1489
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 14, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 2025Record 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=>= 0.13, < 0.19.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

AIDE · AIDEversion=>= 0.13, < 0.19.2

Published CVSS scores

6.2GitHubCVSS:3.1/AV:L/AC:L/PR:N/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 exploitPublished

Weakness, pattern, technique

T1489Service Stop

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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