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CVE-2021-32030: ASUS Routers Improper Authentication Vulnerability

criticalknown exploitedpublic exploitCVE-2021-32030
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
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.

CSIRTS triage

What
This vulnerability allows an attacker to gain unauthorized access to the administrative interface.
Who is affected
ASUS Lyra Mini and ASUS GT-AC2900 devices are affected, which may be end-of-life or end-of-service.
Urgency
Remediation is urgent as exploitation is confirmed and the severity is critical.
Action
Discontinue use of affected products or apply any available updates.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2025-06-02
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2021-32030

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2021-32030coverage & exploitation statusNVD · CVE.org

Recent advisories for ASUS Routers Improper

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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