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01 Record

CVE-2022-0734

A cross-site scripting vulnerability was identified in the CGI program of Zyxel USG/ZyWALL series firmware versions 4.35 through 4.70, USG FLEX series firmware versions 4.50 through 5.20, ATP series

MediumPUBLISHEDCNA: Zyxel
CNA base score5.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N

02 Description

A cross-site scripting vulnerability was identified in the CGI program of Zyxel USG/ZyWALL series firmware versions 4.35 through 4.70, USG FLEX series firmware versions 4.50 through 5.20, ATP series

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
9.40% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 95.1% of scored records. A rank, not a probability.
NVD base score
6.1 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2022-05-24 02:10Z4 YR AGO
Last updated
2024-08-02 23:40Z2 YR AGO
Reserved
2022-02-23
Assigning CNA
Zyxel
Record state
PUBLISHED
Severity
Medium (CVSS 5.8)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
Weaknesses
  • CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base
Data version
5.1
Document digest
f9d369ec2c4378c569b0d496621a5593789849216bd7158953cb24e063f9dae8

05 Affected products

VendorProductVersionsPlatforms
ZyxelUSG/ZyWALL series firmware4.35 through 4.70—
ZyxelUSG FLEX series firmware4.50 through 5.20—
ZyxelATP series firmware4.35 through 5.20—
ZyxelVPN series firmware4.35 through 5.20—

06 References