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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...

Basic Information

CVE State
PUBLISHED
Reserved Date
May 05, 2021
Published Date
May 06, 2021
Last Updated
June 06, 2025
Vendor
n/a
Product
n/a
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.
Tags
cisa nuclei_scanner edge

CVSS Scores

CVSS v3.1

9.8 - CRITICAL

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0

7.5

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS Score

Score
93.44% (Percentile: 99.81%) as of 2025-05-26

SSVC Information

Exploitation
active
Automatable
Yes
Technical Impact
total

Exploit Status

Exploited in the Wild
Yes (2025-05-05 00:00:00 UTC) Source

References

https://www.asus.com/Networking-IoT-Servers/WiFi-Routers/ASUS-Gaming-Routers/RT-AC2900/HelpDesk_BIOS/ https://github.com/atredispartners/advisories/blob/master/ATREDIS-2020-0010.md https://www.atredis.com/blog/2021/4/30/asus-authentication-bypass https://www.asus.com/us/supportonly/lyra%20mini/helpdesk_bios/

Known Exploited Vulnerability Information

Source Added Date
The Shadowserver (via CIRCL) 2025-04-28 00:00:00 UTC

Recent Mentions

CISA Adds Five Known Exploited Vulnerabilities to Catalog

Source: All CISA Advisories • Published: 2025-06-02 12:00:00 UTC

CISA added five new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2021-32030 ASUS Routers Improper Authentication Vulnerability CVE-2023-39780 ASUS RT-AX55 Routers OS Command Injection Vulnerability CVE-2024-56145 Craft CMS Code Injection Vulnerability CVE-2025-3935 ConnectWise ScreenConnect Improper Authentication Vulnerability CVE-2025-35939 Craft CMS External Control of Assumed-Immutable Web Parameter Vulnerability These types of vulnerabilities are frequent attack vectors for malicious cyber actors and pose significant risks to the federal enterprise. Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities established the KEV Catalog as a living list of known Common Vulnerabilities and Exposures (CVEs) that carry significant risk to the federal enterprise. BOD 22-01 requires Federal Civilian Executive Branch (FCEB) agencies to remediate identified vulnerabilities by the due date to protect FCEB networks against active threats. See the BOD 22-01 Fact Sheet for more information. Although BOD 22-01 only applies to FCEB agencies, CISA strongly urges all organizations to reduce their exposure to cyberattacks by prioritizing timely remediation of KEV Catalog vulnerabilities as part of their vulnerability management practice. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria. Please share your thoughts with us through our anonymous survey. We appreciate your feedback.

Scanner Integrations

Scanner URL Date Detected
Nuclei https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-32030.yaml 2025-04-26 00:00:00 UTC

Timeline

  • CVE ID Reserved

  • CVE Published to Public

  • Detected by Nuclei

  • Added to KEVIntel