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CVE-2023-22916

Published: Apr 24, 2023Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-20
NVD MITRE
8.1CVSSHIGH
EPSS Score
0.7%
Top 52.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

The configuration parser of Zyxel ATP series firmware versions 5.10 through 5.35, USG FLEX series firmware versions 5.00 through 5.35, USG FLEX 50(W) firmware versions 5.10 through 5.35, USG20(W)-VPN firmware versions 5.10 through 5.35, and VPN series firmware versions 5.00 through 5.35, which fails to properly sanitize user input. A remote unauthenticated attacker could leverage the vulnerability to modify device configuration data, resulting in DoS conditions on an affected device if the attacker could trick an authorized administrator to switch the management mode to the cloud mode.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:UC:NI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-20NVD-CWE-noinfo

Affected Products

ATP series firmwareZyxelNetworking Infrastructure
USG FLEX series firmwareZyxelNetworking Infrastructure
USG FLEX 50(W) firmwareZyxelNetworking Infrastructure
USG20(W)-VPN firmwareZyxelNetworking Infrastructure
VPN series firmwareZyxelNetworking Infrastructure
zyxelcommercialTWNetworking Infrastructureaka zyxel communications corp.
and 23 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-of-firewalls-and-aps
zyxel.com

Timeline

Published
Apr 24, 2023
Last Updated
Nov 21, 2024

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