Cyber Resilience

CVE-2023-22913

HighRCE

Published: 24 April 2023

Published
24 April 2023
Modified
21 November 2024
KEV Added
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Patch
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CVSS Score v3.1 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
EPSS Score 0.0067 71.9th percentile
Risk Priority 17 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-22913 is a high-severity Command Injection (CWE-77) vulnerability in Zyxel Usg Flex 100 Firmware. Its CVSS base score is 8.1 (High).

Operationally, ranked in the top 28.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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 authenticated attacker to modify device configuration data,…

more

resulting in denial-of-service (DoS) conditions on an affected device.

CWE(s)
CWE-77

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

zyxel
usg flex 100 firmware
4.50 — 5.35
zyxel
usg flex 100w firmware
4.50 — 5.35
zyxel
usg flex 200 firmware
4.50 — 5.35
zyxel
usg flex 50 firmware
4.50 — 5.35
zyxel
usg flex 50w firmware
4.50 — 5.35
zyxel
usg flex 500 firmware
4.50 — 5.35
zyxel
usg flex 700 firmware
4.50 — 5.35
zyxel
vpn100 firmware
4.50 — 5.35
zyxel
vpn1000 firmware
4.50 — 5.35
zyxel
vpn300 firmware
4.50 — 5.35
+1 more product configuration(s) — see NVD for full list

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References