What is CVE-2026-6058?

CVE-2026-6058 is a medium-severity vulnerability in Zyxel Wre6505 V2 Firmware, classified under Improper Encoding or Escaping of Output. CVSS score: 4.5/10. Published 2026-04-21.

How severe is CVE-2026-6058?

Medium severity. CVSS v3 base score is 4.5 out of 10.

Vulnerability in Zyxel Wre6505 V2 Firmware

CVE-2026-6058

** UNSUPPORTED WHEN ASSIGNED ** An improper encoding or escaping vulnerability in the CGI program of Zyxel WRE6505 v2 firmware version V1.00(ABDV.3)C0 could allow an adjacent attacker on the WLAN to cause a denial-of-service (DoS) conditio…

EPSS: 0.000 (0.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.

Affected products

Zyxel Wre6505 V2 Firmware — versions V1.00(ABDV.3)C0

Weakness classification (CWE)

CWE-116 — Improper Encoding or Escaping of Output

References

www.zyxel.com/global/en/support/end-of-life

Frequently asked questions

What is CVE-2026-6058?: CVE-2026-6058 is a medium-severity vulnerability in Zyxel Wre6505 V2 Firmware, classified under Improper Encoding or Escaping of Output. CVSS score: 4.5/10. Published 2026-04-21.
How severe is CVE-2026-6058?: Medium severity. CVSS v3 base score is 4.5 out of 10.