What is CVE-2021-27825?

CVE-2021-27825 is a high-severity vulnerability in Mercurycom Mac1200r, classified under Path Traversal. CVSS score: 7.5/10. Published 2023-05-29.

How severe is CVE-2021-27825?

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

Path Traversal in Mercurycom Mac1200r

CVE-2021-27825

A directory traversal vulnerability on Mercury MAC1200R devices allows attackers to read arbitrary files via a web-static/ URL.

Vulnerability class: Path Traversal (Directory Traversal)

Published 2023-05-29 · 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: 0.078 (94.5th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 94.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.078 · newest: 0.078 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-22 — Path Traversal

References

www.mercurycom.com.cn/product-1-1.html (Product)
packetstormsecurity.com/files/171771/MAC-1200R-Directory-Traversal.html (VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2021-27825?: CVE-2021-27825 is a high-severity vulnerability in Mercurycom Mac1200r, classified under Path Traversal. CVSS score: 7.5/10. Published 2023-05-29.
How severe is CVE-2021-27825?: High severity. CVSS v3 base score is 7.5 out of 10.