CVE-2025-5467Public exploit

Local crash-data disclosure via incorrect group fallback

Published Dec 10, 2025 · Updated Dec 10, 2025

Incorrect ownership in process_crash() in Canonical Apport allows local users to read another user's crash data from /var/crash. When the whoopsie account is absent, process_crash() falls back to the crashing user's primary group and leaves the report mode at 0640, granting that group read access. Exploitation requires another local user to share that primary group; exposed reports can contain core-dump secrets such as environment values.

CVSS severity3.3
Low
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect ownership in process_crash() in Canonical Apport allows local users to read another user's crash data from /var/crash. When the whoopsie account is absent, process_crash() falls back to the crashing user's primary group and leaves the report mode at 0640, granting that group read access. Exploitation requires another local user to share that primary group; exposed reports can contain core-dump secrets such as environment values.

The record

CVE
CVE-2025-5467
Published
Dec 10, 2025
Updated
Dec 10, 2025
Vendor
Canonical
Product
Apport
Classifications
CWE-708, CAPEC-639, T1005
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 10, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 10, 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=2.20.11-0ubuntu27 <2.20.11-0ubuntu27.28
  2. Affected versionversion=2.20.11-0ubuntu82 <2.20.11-0ubuntu82.7
  3. Affected versionversion=2.20.1 <2.20.1-0ubuntu2.30+esm5
  4. Affected versionversion=2.20.9 <2.20.9-0ubuntu7.29+esm1
  5. Affected versionversion=2.28.1 <2.28.1-0ubuntu3.6
  6. Affected versionversion=2.32.0 <2.32.0-0ubuntu5.1
  7. Affected versionversion=2.33.0 <2.33.0-0ubuntu1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

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

Published CVSS scores

1.9CanonicalCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
3.3NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/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-708Incorrect Ownership Assignment
CAPEC-639Probe System Files
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

See the directory against your own environment.

Your stack

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