What is CVE-2022-28380?

CVE-2022-28380 is a high-severity vulnerability in Rc-Httpd Project, classified under Path Traversal. CVSS score: 7.5/10. Published 2022-04-03.

How severe is CVE-2022-28380?

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

Path Traversal in Rc-Httpd Project

CVE-2022-28380

The rc-httpd component through 2022-03-31 for 9front (Plan 9 fork) allows ..%2f directory traversal if serve-static is used.

Vulnerability class: Path Traversal (Directory Traversal)

Published 2022-04-03 · last modified 2026-06-17.

CVSS v3 metric

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

EPSS exploit prediction

EPSS: 0.015 (73.9th percentile), scored 2026-10-03.

Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 73.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000

Affected products

Rc-Httpd Project

Weakness classification (CWE)

CWE-22 — Path Traversal

References

desuarchive.org/g/thread/86286230 (Third Party Advisory, Issue Tracking)
git.9front.org/plan9front/plan9front/241667b933ff5bacb9a3974f6877fb8aad78bed3/c… (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2022-28380?: CVE-2022-28380 is a high-severity vulnerability in Rc-Httpd Project, classified under Path Traversal. CVSS score: 7.5/10. Published 2022-04-03.
How severe is CVE-2022-28380?: High severity. CVSS v3 base score is 7.5 out of 10.