CVE-2017-17550

8.8 highEPSS 0.5%

ZyXEL ZyWALL USG 2.12 AQQ.2 and 3.30 AQQ.7 devices are affected by a CSRF vulnerability via a cgi-bin/zysh-cgi cmd action to add a user account. This account's access could, for example, subsequently be used for stored XSS.

Severity

CVSS 3.0

8.8 high

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 42% of CVEs (scores of 2026-10-31)
CWE: CWE-352
Published: 2018-11-10
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

zyxel:zywall_usg_100_firmware

References

https://www.shellcode.it/article/cve-2017-17550/
https://www.shellcode.it/article/cve-2017-17550/

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