6.7

CVE-2023-49721: canonical ltd. lxd Incorrect Default Permissions

CVSS: 6.7v3.1MediumAnalyzed
Published 14-02-2024Last modified 24-10-2024
Open JSON

Vulnerability summary

CVE-2023-49721 is a medium (CVSS 6.7) Incorrect Default Permissions vulnerability in canonical ltd. lxd. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 13.8% of scored vulnerabilities.

Overall risk
27/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.7/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.24%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 14-02-2024
    PublishedVulnerability first disclosed.
  2. 24-10-2024
    Last modifiedVulnerability information updated.

Description

An insecure default to allow UEFI Shell in EDK2 was left enabled in LXD. This allows an OS-resident attacker to bypass Secure Boot.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.24%

Chance of exploitation in the next 30 days

Percentile

14%

Versus all other CVEs

30-day change

0.00 pp

From 0.24% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.24%

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

Canonical1 product
  • lxd≥ 5.0.0, < 5.21.0
Canonical ltd.1 product
  • lxdAll versions (No fix recorded)
Tianocore1 product

3 vendors · 3 products

References

4 links