CVE-2021-32030

ASUS Routers Improper Authentication Vulnerability

n/a

CVSS

99.4%

EPSS (exploit prob.)

99.9%

EPSS percentile

Yes

Actively exploited

Ransomware use

2025-06-02

Added

MITRE ATT&CK techniques

How this vulnerability maps to adversary behaviour, from the Center for Threat-Informed Defense's public CVE→ATT&CK mappings. Use it to check whether your detections already cover the technique.

Technique	Name	Relationship
T1068	Exploitation for Privilege Escalation	exploitation technique
T1040	Network Sniffing	primary impact
T1098	Account Manipulation	primary impact

Summary

ASUS Lyra Mini and ASUS GT-AC2900 devices contain an improper authentication vulnerability that allows an attacker to gain unauthorized access to the administrative interface. The impacted products could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.

Affected software

Vendor: ASUS · Product: Routers

Weakness types (CWE):

What to do

This vulnerability appears in CISA's Known Exploited Vulnerabilities catalog, meaning it is being exploited in the wild. Prioritize patching affected systems and verify exposure across your estate.

Related vulnerabilities in ASUS

CVE	Name	EPSS	Exploited
CVE-2023-39780	ASUS RT-AX55 Routers OS Command Injection Vulnerability	33.9%	Yes
CVE-2025-59374	ASUS Live Update Embedded Malicious Code Vulnerability	1.1%	Yes

Is your domain exposed?

Run a free, instant security report for any domain — exposure score, email auth, TLS and breach metadata.

Get your free report

All information is aggregated from public sources for awareness only and does not constitute an accusation or a security assessment. No personal data or credentials are published.