What is CVE-2022-28652?

CVE-2022-28652 is a medium-severity vulnerability in Apport Project, classified under Improper Restriction of Recursive Entity References in DTDs (XML Entity Expansion). CVSS score: 5.5/10. Published 2024-06-04.

How severe is CVE-2022-28652?

Medium severity. CVSS v3 base score is 5.5 out of 10.

XXE in Apport Project

CVE-2022-28652

~/.config/apport/settings parsing is vulnerable to "billion laughs" attack

Published 2024-06-04 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.002 (9.1th percentile), scored 2026-10-20.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 9th percentile — 9.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Apport Project
Canonical Ltd. Apport — versions 0
Canonical Ubuntu Linux — versions 18.04, 20.04, 21.10

Weakness classification (CWE)

CWE-776 — Improper Restriction of Recursive Entity References in DTDs (XML Entity Expansion)

References

ubuntu.com/security/notices/USN-5427-1 (vendor-advisory, Third Party Advisory)
www.cve.org/CVERecord (issue-tracking, Third Party Advisory)

Frequently asked questions

What is CVE-2022-28652?: CVE-2022-28652 is a medium-severity vulnerability in Apport Project, classified under Improper Restriction of Recursive Entity References in DTDs (XML Entity Expansion). CVSS score: 5.5/10. Published 2024-06-04.
How severe is CVE-2022-28652?: Medium severity. CVSS v3 base score is 5.5 out of 10.