Cyber Resilience

CVE-2023-22918

Medium

Published: 24 April 2023

Published
24 April 2023
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.0017 38.5th percentile
Risk Priority 13 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-22918 is a medium-severity Exposure of Private Personal Information to an Unauthorized Actor (CWE-359) vulnerability in Zyxel Atp200 Firmware. Its CVSS base score is 6.5 (Medium).

Operationally, ranked at the 38.5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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,…

more

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.

CWE(s)

Related Threats

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

Affected Assets

zyxel
atp200 firmware
4.32 — 5.36
zyxel
atp100 firmware
4.32 — 5.36
zyxel
atp700 firmware
4.32 — 5.36
zyxel
atp500 firmware
4.32 — 5.36
zyxel
atp100w firmware
4.32 — 5.36
zyxel
atp800 firmware
4.32 — 5.36
zyxel
usg flex 100 firmware
4.50 — 5.36
zyxel
usg flex 50 firmware
4.50 — 5.36
zyxel
usg flex 200 firmware
4.50 — 5.36
zyxel
usg flex 500 firmware
4.50 — 5.36
+41 more product configuration(s) — see NVD for full list

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-359

Automated marking identifies private personal information in outputs, tangibly reducing the ability to exploit weaknesses that result in its unauthorized exposure.

addresses: CWE-359

Privacy-specific attributes and their controlled association directly reduce exposure of private personal information through missing or incorrect labeling.

addresses: CWE-359

Preventing nonpublic personal information from public posting reduces unauthorized exposure of private personal data.

addresses: CWE-359

The control detects and protects against mining of private personal information, reducing unauthorized exposure of PII.

addresses: CWE-359

Privacy literacy training directly targets preventing exposure of personal information through user mishandling.

addresses: CWE-359

Tracking locations of sensitive data and access users reduces risk of private personal information exposure.

addresses: CWE-359

PIA explicitly identifies PII collection/use/disclosure flows and drives mitigations that reduce the likelihood of unauthorized exposure of private personal information.

addresses: CWE-359

The control specifically requires architectures that minimize privacy risk when processing PII, directly addressing exposure of personal information.

References