HOMEVULNERABILITIESCVE-2026-33542
MEDIUM

CVE-2026-33542

CWE-295Published: March 26, 2026· Updated: Mar 30, 2026

4.8
CVSS v3.1
EPSS:0.04%probability of exploitation in 30 daysPercentile:11.6th

Official Description

Incus is a system container and virtual machine manager. Prior to version 6.23.0, a lack of validation of the image fingerprint when downloading from simplestreams image servers opens the door to image cache poisoning and under very narrow circumstances exposes other tenants to running attacker controlled images rather than the expected one. Version 6.23.0 patches the issue.

NVD Source

Technical Analysis

CVE-2026-33542 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityHigh
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Affected Vendors & Products

linuxcontainers1 product
incus
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://github.com/lxc/incus/security/advisories/GHSA-p8mm-23gg-jc9r

All References (1)

→
https://github.com/lxc/incus/security/advisories/GHSA-p8mm-23gg-jc9rExploit · Mitigation · Vendor Advisory

Quick Facts

CVE IDCVE-2026-33542
CVSS Score4.8 / 10
SeverityMEDIUM
WeaknessCWE-295
CISA KEVNo
EPSS (30d)0.04%
Affected1 vendor
PublishedMar 26, 2026

Related CVEs (CWE-295)

CVE-2026-4370
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CVE-2026-9259
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CVE-2026-20184
9.8
CVE-2026-9258
9.8
CVE-2025-15573
9.4
CVE-2026-5194
9.3

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-33542 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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