What is CVE-2023-22913?

CVE-2023-22913 is a high-severity vulnerability in Zyxel Usg_flex_100, classified under Command Injection. CVSS score: 8.1/10. Published 2023-04-24.

How severe is CVE-2023-22913?

High severity. CVSS v3 base score is 8.1 out of 10.

RCE in Zyxel Usg_flex_100

CVE-2023-22913

A post-authentication command injection vulnerability in the “account_operator.cgi” CGI program of Zyxel USG FLEX series firmware versions 4.50 through 5.35, and VPN series firmware versions 4.30 through 5.35, which could allow a remote au…

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.013 (67.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.

Affected products

Zyxel Usg_flex_100
Zyxel Usg_flex_100_firmware
Zyxel Usg_flex_100w
Zyxel Usg_flex_100w_firmware
Zyxel Usg_flex_200
Zyxel Usg_flex_200_firmware
Zyxel Usg_flex_50
Zyxel Usg_flex_500
Zyxel Usg_flex_500_firmware
Zyxel Usg_flex_50_firmware

Weakness classification (CWE)

CWE-77 — Command Injection

References

security@zyxel.com.tw (Vendor Advisory)

Frequently asked questions

What is CVE-2023-22913?: CVE-2023-22913 is a high-severity vulnerability in Zyxel Usg_flex_100, classified under Command Injection. CVSS score: 8.1/10. Published 2023-04-24.
How severe is CVE-2023-22913?: High severity. CVSS v3 base score is 8.1 out of 10.