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CVE-2021-32030
CVE
Critical KEVConfirmedExploit available

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 authenticati…

CVSS
9.8
Critical
EPSS
0.94
p99
Published
2021-01-01
Updated
2025-06-02
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 · CWE
KEVPre-auth
CWE-287
CAPEC-22
CAPEC-57
CAPEC-94
CAPEC-114
CAPEC-115
CAPEC-151
CAPEC-194
CAPEC-593
CAPEC-633
CAPEC-650
Affected products
Gt-ac2900_firmwareLyra_mini_firmware
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Timeline
2021-01-01
Published
2025-06-02
Added to KEV
2025-06-02
Updated
CVSS 3.1 breakdown
Attack Vector
AV: N
Network (N)
Attack Complexity
AC: L
Low (L)
Privileges Required
PR: N
None (N)
User Interaction
UI: N
None (N)
Scope
S: U
Unchanged (U)
Confidentiality Impact
C: H
High (H)
Integrity Impact
I: H
High (H)
Availability Impact
A: H
High (H)
Exploit indicators
EPSS
0.942 · p99
Known exploited (KEV)
Yes
MITRE ATT&CK
Inferred via CAPEC
└ via CAPEC-57 · CWE-287
└ via CAPEC-633 · CWE-287
└ via CAPEC-593 · CWE-287
└ via CAPEC-650 · CWE-287
└ via CAPEC-114 · CWE-287
└ via CAPEC-593 · CWE-287
└ via CAPEC-94 · CWE-287
└ via CAPEC-593 · CWE-287
Known exploits — Сканер-ВС
CVE-2021-32030
cisa · https://www.cisa.gov/known-exploited-vulnerabilities-catalog
Enterprise
Affected software
ProductVendorStatus
gt-ac2900_firmware*Exploited
lyra_mini_firmware*Exploited
Source databases
CVE
Related vulnerabilities