HOMEVULNERABILITIESCVE-2026-33743
MEDIUM

CVE-2026-33743

CWE-770Published: March 26, 2026· Updated: Mar 30, 2026

6.5
CVSS v3.1
EPSS:0.04%probability of exploitation in 30 daysPercentile:12.0th

Official Description

Incus is a system container and virtual machine manager. Prior to version 6.23.0, a specially crafted storage bucket backup can be used by an user with access to Incus' storage bucket feature to crash the Incus daemon. Repeated use of this attack can be used to keep the server offline causing a denial of service of the control plane API. This does not impact any running workload, existing containers and virtual machines will keep operating. Version 6.23.0 fixes the issue.

NVD Source

Technical Analysis

CVE-2026-33743 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 6.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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-vg76-xmhg-j5x3
ADVISORYhttps://github.com/lxc/incus/security/advisories/GHSA-vg76-xmhg-j5x3

All References (2)

→
https://github.com/lxc/incus/security/advisories/GHSA-vg76-xmhg-j5x3Exploit · Vendor Advisory
→
https://github.com/lxc/incus/security/advisories/GHSA-vg76-xmhg-j5x3Exploit · Vendor Advisory

Quick Facts

CVE IDCVE-2026-33743
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-770
CISA KEVNo
EPSS (30d)0.04%
Affected1 vendor
PublishedMar 26, 2026

Related CVEs (CWE-770)

CVE-2026-12818
9.3
CVE-2026-35469
8.7
CVE-2026-32688
8.7
CVE-2026-43973
8.7
CVE-2026-39313
8.7
CVE-2026-42786
8.7

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-33743 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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