What is CVE-2026-71932?

CVE-2026-71932 is a medium-severity vulnerability in Draytek Corporation Vigorswitch Fx2120, classified under Path Traversal. CVSS score: 4.9/10. Published 2026-08-24.

How severe is CVE-2026-71932?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Path Traversal in Draytek Corporation Vigorswitch Fx2120

CVE-2026-71932

Multiple DrayTek VigorSwitch models contain a directory traversal vulnerability in the getSyslogFile function. The vulnerability is caused by insufficient validation of the option field. A remote attacker can trigger this vulnerability via crafted input containing path traversal sequences to access arbitrary files on the device. Exploitation requires valid administrative credentials for the device's web management interface.

Vulnerability class: Path Traversal (Directory Traversal)

Published 2026-08-24 · last modified 2026-08-26.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.010 (62.9th percentile), scored 2026-10-09.

Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 62.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.010 · change: +0.003

Affected products

Weakness classification (CWE)

CWE-22 — Path Traversal

References

www.draytek.com/about/security-advisory/multiple-vulnerabilities-in-vigorswitch… (vendor-advisory)
www.vulncheck.com/advisories/draytek-vigorswitch-multiple-models-path-traversal… (third-party-advisory)

Frequently asked questions

What is CVE-2026-71932?: CVE-2026-71932 is a medium-severity vulnerability in Draytek Corporation Vigorswitch Fx2120, classified under Path Traversal. CVSS score: 4.9/10. Published 2026-08-24.
How severe is CVE-2026-71932?: Medium severity. CVSS v3 base score is 4.9 out of 10.