9.9

CVE-2026-62867: lxc incus Argument Injection

CVSS: 9.9v3.1CriticalDeferred
AliasesUBUNTU-CVE-2026-62867DEBIAN-CVE-2026-62867
Published 21-08-2026Last modified 21-08-2026
Open JSON

Vulnerability summary

CVE-2026-62867 is a critical (CVSS 9.9) Argument Injection vulnerability in lxc incus. EPSS estimates a 0.52% chance of exploitation in the next 30 days, higher than 42.8% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.9/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.52%
0%100%
Low · +0.23 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
OPENSUSE-SU-2026:11651-1

Timeline

  1. 21-08-2026
    PublishedVulnerability first disclosed.
  2. 21-08-2026
    Last modifiedVulnerability information updated.

Description

Incus is a system container and virtual machine manager. Prior to version 7.3.0, improper validation of user-provided `block.create_options` in storage volume configuration leads to argument injection in the constructed filesystem creation command line. This allows a project-scoped user to inject arbitrary arguments into the binary executed as root. Version 7.3.0 patches the issue.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.52%

Chance of exploitation in the next 30 days

Percentile

43%

Versus all other CVEs

30-day change

+0.23 pp

From 0.29% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.52%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • incus< 6.0.4-2+deb13u9 | < 7.0.1-2
Lxc1 product
Ubuntu1 product
  • incusAll versions (No fix recorded)

3 vendors · 3 products

References

5 links