synced 2 MIN AGO
01 Record

CVE-2020-29299

Certain Zyxel products allow command injection by an admin via an input string to chg_exp_pwd during a password-change action. This affects VPN On-premise before ZLD V4.39 week38, VPN Orchestrator

UnratedPUBLISHEDCNA: mitre
CNA base scoreUnratedNo CNA CVSS vector

02 Description

Certain Zyxel products allow command injection by an admin via an input string to chg_exp_pwd during a password-change action. This affects VPN On-premise before ZLD V4.39 week38, VPN Orchestrator

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
2.37% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 83.5% of scored records. A rank, not a probability.
NVD base score
7.2 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
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
2020-12-27 05:51Z5 YR AGO
Last updated
2024-08-04 16:48Z2 YR AGO
Reserved
2020-11-27
Assigning CNA
mitre
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')Class
Data version
5.1
Document digest
4fc4bc33ece4beddacd8a34998a8130e9d13c02c41f9cb4ce35030d4c146f0ac

05 Affected products

VendorProductVersionsPlatforms
zyxelatpNot specified—
zyxelnsgNot specified—
zyxelnsg_firmwareNot specified—
zyxelusg_flexNot specified—
zyxelusg_flex_firmwareNot specified—
zyxelvpn_orchestratorNot specified—
zyxelzldNot specified—

06 References