CVE-2021-32030 Technical Vulnerability Analysis & Patch Advisory (CVSS 9.8)
Executive & SecOps Summary
SECOPS ASSESSMENTSystems running unpatched versions impacted by CVE-2021-32030
The administrator application on ASUS GT-AC2900 devices before 3.0.0.4.386.42643 and Lyra Mini before 3.0.0.4_384_46630 allows authenticatio...
Apply vendor security patches and restrict external network exposure.
Affected Products & Version Scope
Remediation & Live Workaround Commands
PATCH & WORKAROUNDRemediation Steps
- Upgrade to the latest patched release from the vendor.
- Apply virtual patching or network segmentation until maintenance windows allow full patching.
Stop Exposing VPN Ports to the Internet — Switch to Zero-Trust Access
Eliminate public-facing VPN concentrators and firewall management ports with identity-first Zero-Trust Network Access.
Technical Root Cause & Exploitation Mechanics
Technical Overview
The administrator application on ASUS GT-AC2900 devices before 3.0.0.4.386.42643 and Lyra Mini before 3.0.0.4_384_46630 allows authentication bypass when processing remote input from an unauthenticated user, leading to unauthorized access to the administrator interface. This relates to handle_request in router/httpd/httpd.c and auth_check in web_hook.o. An attacker-supplied value of '\0' matches the device's default value of '\0' in some situations. Note: All versions of Lyra Mini and earlier which are unsupported (End-of-Life, EOL) are also affected by this vulnerability, Consumers can mitigate this vulnerability by disabling the remote access features from WAN.
- CVSS Score: 9.8 (CRITICAL)
- CWE IDs: CWE-287, CWE-287
Official Vendor Advisories & References
The administrator application on ASUS GT-AC2900 devices before 3.0.0.4.386.42643 and Lyra Mini before 3.0.0.4_384_46630 allows authentication bypass when processing remote input from an unauthenticated user, leading to unauthorized access to the administrator interface. This relates to handle_request in router/httpd/httpd.c and auth_check in web_hook.o. An attacker-supplied value of '\0' matches the device's default value of '\0' in some situations. Note: All versions of Lyra Mini and earlier which are unsupported (End-of-Life, EOL) are also affected by this vulnerability, Consumers can mitigate this vulnerability by disabling the remote access features from WAN.
Frequently Asked SecOps Questions (CVE-2021-32030)
FAQQ1. How critical is CVE-2021-32030 and is it actively exploited in the wild?
CVE-2021-32030 is rated CVSS 9.8 (CRITICAL) with a 30-day EPSS exploitation probability of 99.4%. It is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, requiring immediate emergency remediation.
Q2. Which vendors and products are affected by CVE-2021-32030?
Primary impacted vendors include security-advisory across enterprise-software. Scope summary: All unpatched versions listed in the official NVD CPE configurations
Q3. What temporary mitigations or workarounds exist for CVE-2021-32030 before patching?
[Mitigation] Apply vendor security patches and restrict external network exposure. Follow the CLI remediation commands and interactive SecOps checklist on this page to restrict exposure prior to your maintenance window.
Generate an Internal Engineering Notice or CISO Report for CVE-2021-32030
Instantly format this advisory into an executive CISO summary or engineering patch ticket.
🔗 Related Advisories in Similar Stack (security-advisory)
View Category →CVE-2026-120114 Technical Vulnerability Analysis & Patch Advisory (CVSS 7.2)
[Affected Scope] Systems running unpatched versions impacted by CVE-2026-120114
Cisco Catalyst SD-WAN Peering Authentication Bypass Vulnerability (CVE-2026-20182)
[Affected Scope] Cisco Catalyst SD-WAN Controller (formerly vSmart), Manager (formerly vManage), and Validator (formerly vBond)
Check Point SmartConsole Authentication Bypass and Privilege Escalation Vulnerability (CVE-2026-16232) Advisory
[Affected Scope] Check Point Security Management Servers and SmartConsole instances exposed to the internet without Trusted Clients restrictions configured
Check Point Remote Access VPN and Mobile Access Authentication Bypass Vulnerability (CVE-2026-50751) Security Advisory
[Affected Scope] Check Point Remote Access and Mobile Access VPN gateways utilizing the deprecated IKEv1 key exchange protocol
Subscribe to Daily Vulnerability Briefings & KEV Alerts
Concise morning briefings for SecOps, DevSecOps, and SRE teams covering newly exploited CVEs and mitigation priorities.