What is CVE-2024-9312?

CVE-2024-9312 is a high-severity vulnerability in Canonical Ltd. Authd, classified under CWE-286. CVSS score: 7.5/10. Published 2024-10-10.

How severe is CVE-2024-9312?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Canonical Ltd. Authd

CVE-2024-9312

Authd, through version 0.3.6, did not sufficiently randomize user IDs to prevent collisions. A local attacker who can register user names could spoof another user's ID and gain their privileges.

Published 2024-10-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.003 (19.2th percentile), scored 2026-10-19.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 19.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Canonical Ltd. Authd — versions 0
Canonical Authd

Weakness classification (CWE)

References

github.com/ubuntu/authd/security/advisories/GHSA-4gfw-wf7c-w6g2 (issue-tracking, Exploit, Mitigation, Vendor Advisory)
www.cve.org/CVERecord (issue-tracking, Third Party Advisory)

Frequently asked questions

What is CVE-2024-9312?: CVE-2024-9312 is a high-severity vulnerability in Canonical Ltd. Authd, classified under CWE-286. CVSS score: 7.5/10. Published 2024-10-10.
How severe is CVE-2024-9312?: High severity. CVSS v3 base score is 7.5 out of 10.