What is CVE-2020-24356?

CVE-2020-24356 is a medium-severity vulnerability in Cloudflare Cloudflared, classified under Uncontrolled Search Path Element. CVSS score: 6.4/10. Published 2020-10-02.

How severe is CVE-2020-24356?

Medium severity. CVSS v3 base score is 6.4 out of 10.

Vulnerability in Cloudflare Cloudflared

CVE-2020-24356

`cloudflared` versions prior to 2020.8.1 contain a local privilege escalation vulnerability on Windows systems. When run on a Windows system, `cloudflared` searches for configuration files which could be abused by a malicious entity to execute commands as a privileged user. Version 2020.8.1 fixes this issue.

Published 2020-10-02 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:H/A:N.

EPSS exploit prediction

EPSS: 0.003 (25.8th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 25.8% 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

Cloudflare Cloudflared — versions unspecified

Weakness classification (CWE)

CWE-427 — Uncontrolled Search Path Element

References

github.com/cloudflare/cloudflared/security/advisories/GHSA-hgwp-4vp4-qmm2 (Third Party Advisory)

Frequently asked questions

What is CVE-2020-24356?: CVE-2020-24356 is a medium-severity vulnerability in Cloudflare Cloudflared, classified under Uncontrolled Search Path Element. CVSS score: 6.4/10. Published 2020-10-02.
How severe is CVE-2020-24356?: Medium severity. CVSS v3 base score is 6.4 out of 10.