6.5

CVE-2026-33743: linuxcontainers incus

CVSS: 6.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2026-33743DEBIAN-CVE-2026-33743GHSA-vg76-xmhg-j5x3
Published 26-03-2026Last modified 27-03-2026
Open JSON

Vulnerability summary

CVE-2026-33743 is a medium (CVSS 6.5) vulnerability in linuxcontainers incus. EPSS estimates a 0.44% chance of exploitation in the next 30 days, higher than 37.2% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
36/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.44%
0%100%
Low · +0.06 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 3 · Related 2
DSA-6184-1OPENSUSE-SU-2026:10450-1OPENSUSE-SU-2026:21483-1

Timeline

  1. 26-03-2026
    PublishedVulnerability first disclosed.
  2. 27-03-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.44%

Chance of exploitation in the next 30 days

Percentile

37%

Versus all other CVEs

30-day change

+0.06 pp

From 0.39% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.44%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Incus

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • incus< 6.0.4-2+deb13u5 | < 6.0.6-2
Github.com/lxc1 product
  • incus≤ 0.7.0 | All versions (No fix recorded)
Github.com/lxc/incus1 product
  • v6< 6.23.0
Linuxcontainers1 product
Lxc1 product
Ubuntu1 product
  • incusAll versions (No fix recorded)

6 vendors · 6 products

References

9 links