What is CVE-2021-32557?

CVE-2021-32557 is a medium-severity vulnerability in Canonical Apport, classified under Improper Link Resolution Before File Access. CVSS score: 5.2/10. Published 2021-06-12.

How severe is CVE-2021-32557?

Medium severity. CVSS v3 base score is 5.2 out of 10.

Vulnerability in Canonical Apport

CVE-2021-32557

It was discovered that the process_report() function in data/whoopsie-upload-all allowed arbitrary file writes via symlinks.

Published 2021-06-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L.

EPSS exploit prediction

EPSS: 0.004 (30.7th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 30.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Canonical Apport — versions 2.20.1, 2.20.9, 2.20.11-0ubuntu27

Weakness classification (CWE)

References

bugs.launchpad.net/ubuntu/+source/apport/+bug/1917904 (Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2021-32557?: CVE-2021-32557 is a medium-severity vulnerability in Canonical Apport, classified under Improper Link Resolution Before File Access. CVSS score: 5.2/10. Published 2021-06-12.
How severe is CVE-2021-32557?: Medium severity. CVSS v3 base score is 5.2 out of 10.