How severe is CVE-2021-32030?

CVE-2021-32030 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-32030 being actively exploited?

Yes. CVE-2021-32030 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2025-06-02, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2021-32030?

CVE-2021-32030 primarily affects Asus Lyra Mini Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-32030?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2021-32030 have an EU (EUVD) identifier?

Yes. CVE-2021-32030 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2021-18896. It is also flagged as exploited in the EUVD (since 2025-06-02).

When was CVE-2021-32030 published?

CVE-2021-32030 was published on 2021-05-06 and last updated on 2026-06-17.

CVE-2021-32030

CVE-2021-32030 is a critical-severity vulnerability in Asus Lyra Mini Firmware with a CVSS 3.x base score of 9.8. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2025-06-02). The underlying weakness is classified as CWE-287.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 99% (100th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2025-06-02)
EU (EUVD) id: EUVD-2021-18896
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2025-06-02)
Weakness: CWE-287
Affected product: Asus Lyra Mini Firmware
Published: 2021-05-06
Last modified: 2026-06-17

Description

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 questions

What is 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 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.
How severe is CVE-2021-32030?: CVE-2021-32030 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-32030 being actively exploited?: Yes. CVE-2021-32030 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2025-06-02, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2021-32030?: CVE-2021-32030 primarily affects Asus Lyra Mini Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-32030?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2021-32030 have an EU (EUVD) identifier?: Yes. CVE-2021-32030 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2021-18896. It is also flagged as exploited in the EUVD (since 2025-06-02).
When was CVE-2021-32030 published?: CVE-2021-32030 was published on 2021-05-06 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:o:asus:lyra_mini_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:asus:gt-ac2900_firmware:*:*:*:*:*:*:*:*

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