CVE-2025-5054Public exploit

Local core-dump disclosure via PID reuse

Published May 30, 2025 · Updated Nov 3, 2025

Race condition in Canonical Apport 2.20 through 2.32.0 allows local users to read privileged core dumps via PID reuse. _check_global_pid_and_forward runs before consistency_checks, so a replacement namespaced process receives the original process's core-dump descriptor. Exploitation requires local access, usable user namespaces, a timed crash of a privileged process, and PID recycling; demonstrated disclosure includes password hashes.

CVSS severity4.7
Medium
EPSS probability0.74%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Race condition in Canonical Apport 2.20 through 2.32.0 allows local users to read privileged core dumps via PID reuse. _check_global_pid_and_forward runs before consistency_checks, so a replacement namespaced process receives the original process's core-dump descriptor. Exploitation requires local access, usable user namespaces, a timed crash of a privileged process, and PID recycling; demonstrated disclosure includes password hashes.

The record

CVE
CVE-2025-5054
Published
May 30, 2025
Updated
Nov 3, 2025
Vendor
Canonical
Product
Apport
Classifications
CWE-362, CAPEC-26, T1003.008
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 30, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 3, 2025Record 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=2.20.11 <2.20.11-0ubuntu27.28
  2. Affected versionversion=2.20.11 <2.20.11-0ubuntu82.7
  3. Affected versionversion=2.20.1 <2.20.1-0ubuntu2.30+esm5
  4. Affected versionversion=2.20 <=2.32.0
  5. Affected versionversion=2.20.9 <2.20.9-0ubuntu7.29+esm1
  6. Affected versionversion=2.28.1 <2.28.1-0ubuntu3.6
  7. Affected versionversion=2.30.0 <2.30.0-0ubuntu4.3
  8. Affected versionversion=2.32.0 <2.32.0-0ubuntu5.1
  9. Affected versionversion=2.32.0 <2.33.0-0ubuntu1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Canonical · Apportversion=2.20.11 <2.20.11-0ubuntu27.28; version=2.20.11 <2.20.11-0ubuntu82.7; version=2.20.1 <2.20.1-0ubuntu2.30+esm5; version=2.20 <=2.32.0; version=2.20.9 <2.20.9-0ubuntu7.29+esm1; version=2.28.1 <2.28.1-0ubuntu3.6; version=2.30.0 <2.30.0-0ubuntu4.3; version=2.32.0 <2.32.0-0ubuntu5.1; version=2.32.0 <2.33.0-0ubuntu1

Published CVSS scores

4.7CanonicalCVSS: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.

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 exploitPublished

Weakness, pattern, technique

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CAPEC-26Leveraging Race Conditions
T1003.008OS Credential Dumping: /etc/passwd and /etc/shadow

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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