What is CVE-2026-7255?

CVE-2026-7255 is a medium-severity vulnerability in Zyxel Wre6505, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 6.5/10. Published 2026-05-12.

How severe is CVE-2026-7255?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Zyxel Wre6505

CVE-2026-7255

** UNSUPPORTED WHEN ASSIGNED ** An improper restriction of excessive authentication attempts vulnerability in the web management interface of Zyxel WRE6505 v2 firmware version V1.00(ABDV.3)C0 could allow an adjacent attacker on the LAN to…

EPSS: 0.000 (8.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Zyxel Wre6505 — versions v2
Zyxel Wre6505_firmware — versions v1.00\(abdv.3\)c0
Zyxel Wre6505 V2 Firmware — versions V1.00(ABDV.3)C0

Weakness classification (CWE)

CWE-307 — Improper Restriction of Excessive Authentication Attempts

References

security@zyxel.com.tw (Product)

Frequently asked questions

What is CVE-2026-7255?: CVE-2026-7255 is a medium-severity vulnerability in Zyxel Wre6505, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 6.5/10. Published 2026-05-12.
How severe is CVE-2026-7255?: Medium severity. CVSS v3 base score is 6.5 out of 10.