CVE-2025-54288Public exploitNetwork attack vector

Cross-container data disclosure via process-name spoofing

Published Oct 2, 2025 · Updated Oct 2, 2025

Information disclosure in Canonical LXD 5.21 before 5.21.4 and 6.0 before 6.5 allows attackers to read other containers' data. The devLXD findContainerForPID function trusts a spoofable [lxc monitor] process name before validating the caller's PID namespace, selecting an attacker-named container. Root access inside any container permits reads of another container's metadata, user and cloud-init configuration, and device details through the local devLXD socket.

CVSS severity5.1
Medium
EPSS probability0.35%
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 Canonical LXD 5.21 before 5.21.4 and 6.0 before 6.5 allows attackers to read other containers' data. The devLXD findContainerForPID function trusts a spoofable [lxc monitor] process name before validating the caller's PID namespace, selecting an attacker-named container. Root access inside any container permits reads of another container's metadata, user and cloud-init configuration, and device details through the local devLXD socket.

The record

CVE
CVE-2025-54288
Published
Oct 2, 2025
Updated
Oct 2, 2025
Vendor
Canonical
Product
LXD
Classifications
CWE-290, T1036
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Oct 2, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 2, 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=5.21 <5.21.4
  2. Affected versionversion=6.0 <6.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Canonical · LXDversion=5.21 <5.21.4; version=6.0 <6.5

Published CVSS scores

5.1Canonical Ltd.CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N
6.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
4.1Canonical GitHub Security AdvisoryCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/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)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-290Authentication Bypass by Spoofing
T1036Masquerading

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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