SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2023-22918

A post-authentication information exposure vulnerability in the CGI program of Zyxel ATP series firmware versions 4.32 through 5.35, USG FLEX series firmware versions 4.50 through 5.35, USG FLEX 50(W) firmware versions 4.16 through 5.35, USG20(W)-VPN…

MEDIUM 6.5EPSS 0.77%

Does this matter?

Lower severity and a low EPSS score (0.77%). Track it; it rarely justifies an emergency change on its own.

Description

A post-authentication information exposure vulnerability in the CGI program of Zyxel ATP series firmware versions 4.32 through 5.35, USG FLEX series firmware versions 4.50 through 5.35, USG FLEX 50(W) firmware versions 4.16 through 5.35, USG20(W)-VPN firmware versions 4.16 through 5.35, VPN series firmware versions 4.30 through 5.35, NWA110AX firmware version 6.50(ABTG.2) and earlier versions, WAC500 firmware version 6.50(ABVS.0) and earlier versions, and WAX510D firmware version 6.50(ABTF.2) and earlier versions, which could allow a remote authenticated attacker to retrieve encrypted information of the administrator on an affected device.

CVSS 3.1
6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS
0.77% probability · 54th percentile
CISA KEV
Not listed
Weakness
CWE-359
Affected
zyxel/atp200 firmware · zyxel/atp100 firmware · zyxel/atp700 firmware · zyxel/atp500 firmware · zyxel/atp100w firmware · zyxel/atp800 firmware · zyxel/usg flex 100 firmware · zyxel/usg flex 50 firmware · zyxel/usg flex 200 firmware · zyxel/usg flex 500 firmware · zyxel/usg flex 700 firmware · zyxel/usg flex 100w firmware · zyxel/usg 20w-vpn firmware · zyxel/usg flex 50w firmware · zyxel/usg20-vpn firmware · zyxel/vpn100 firmware · zyxel/vpn1000 firmware · zyxel/vpn300 firmware · zyxel/vpn50 firmware · zyxel/nap203 firmware · +31 more
Source
security@zyxel.com.tw

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.