CVE-2026-7287

Description

** 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.1)C0 could allow an attacker to trigger a denial-of-service (DoS) condition by sending a crafted HTTP request to a vulnerable device.

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CVSS v3.1 Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploit Prediction

0.0034

Probability of exploitation

0.57%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-120 CWE-120

Affected Products

Vendor	Product	Versions
zyxel	nwa1100-n_firmware	All
zyxel	nwa1100-n	All

References

Other References

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

Frequently Asked Questions

What is 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.1)C0 could allow an attacker to trigger a denial-of-service (DoS) condition by sending a crafted HTTP request to a vulnerable device. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2026-7287? +

CVE-2026-7287 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0034, placing it in the 1th percentile for exploitation probability.

What products are affected by CVE-2026-7287? +

CVE-2026-7287 affects products from zyxel, specifically: nwa1100-n, nwa1100-n_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-7287? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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