CVE-2023-5960

MEDIUM

5.5

CVSS Score

Published: November 28, 2023 at 02:05 AM UTC

Updated: June 17, 2026 at 06:49 AM UTC

14 products affected across 1 vendorZldUsg Flex 500Usg Flex 200

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.2%

Description

An improper privilege management vulnerability in the hotspot feature of the Zyxel USG FLEX series firmware versions 4.50 through 5.37 and VPN series firmware versions 4.30 through 5.37 could allow an authenticated local attacker to access the system files on an affected device.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Zld · Zyxel

95%

4.30 ≤ v ≤ 5.374.50 ≤ v ≤ 5.37

zyxel-usg-flex-100 (environment) · zyxel-usg-flex-100w (environment) · zyxel-usg-flex-200 (environment) · zyxel-usg-flex-50 (environment) · zyxel-usg-flex-500 (environment) · zyxel-usg-flex-50w (environment) · zyxel-usg-flex-700 (environment) · zyxel-vpn100 (environment) · zyxel-vpn1000 (environment) · zyxel-vpn300 (environment) · zyxel-vpn50 (environment)

USG FLEX · Zyxel

60%

v ≤ 5.37

VPN · Zyxel

60%

v ≤ 5.37

USG FLEX 100 · Zyxeldevice

80%

All versions

USG FLEX 100W · Zyxeldevice

80%

All versions