What is CVE-2026-13206?

CVE-2026-13206 is a critical-severity vulnerability in Zyxel Networks Wah7601, classified under OS Command Injection. CVSS score: 9.8/10. Published 2026-08-10.

How severe is CVE-2026-13206?

Critical severity. CVSS v3 base score is 9.8 out of 10.

RCE in Zyxel Networks Wah7601

CVE-2026-13206

Improper neutralization of special elements used in an OS command ('OS command injection') vulnerability in Zyxel Networks WAH7601 allows OS Command Injection. This issue affects WAH7601: through 20072026.

Vulnerability class: Command Injection (OS Command Injection)

Published 2026-08-10 · last modified 2026-08-26.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.013 (68.5th percentile), scored 2026-09-24.

Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 68.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Zyxel Networks Wah7601 — versions 0

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0799 (government-resource)

Frequently asked questions

What is CVE-2026-13206?: CVE-2026-13206 is a critical-severity vulnerability in Zyxel Networks Wah7601, classified under OS Command Injection. CVSS score: 9.8/10. Published 2026-08-10.
How severe is CVE-2026-13206?: Critical severity. CVSS v3 base score is 9.8 out of 10.