What is CVE-2026-7287?

CVE-2026-7287 is a high-severity vulnerability in Zyxel Nwa1100-n, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2026-05-12.

How severe is CVE-2026-7287?

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

Buffer overflow in Zyxel Nwa1100-n

CVE-2026-7287

** UNSUPPORTED WHEN ASSIGNED ** A buffer overflow vulnerability in the formWep(), formWlAc(), formPasswordSetup(), formUpgradeCert(), and formDelcert() functions of the “webs” binary in Zyxel NWA1100-N customized firmware version 1.00(AACE…

Vulnerability class: Buffer Overflow

EPSS: 0.003 (56.6th percentile) — read the EPSS interpretation.

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:N/I:N/A:H.

Affected products

Zyxel Nwa1100-n
Zyxel Nwa1100-n Firmware — versions 1.00(AACE.1)C0
Zyxel Nwa1100-n_firmware — versions 1.00\(aace.1\)c0

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

security@zyxel.com.tw (Product)

Frequently asked questions

What is CVE-2026-7287?: CVE-2026-7287 is a high-severity vulnerability in Zyxel Nwa1100-n, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2026-05-12.
How severe is CVE-2026-7287?: High severity. CVSS v3 base score is 7.5 out of 10.