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CVE-2021-32030

98
FAUCET Score

CVE-2021-32030 is a critical authentication bypass vulnerability affecting ASUS GT-AC2900 routers and Lyra Mini devices, allowing unauthenticated remote attackers to gain full administrative access. With a CVSS score of 9.8, this flaw is easily exploitable over the network without user interaction, leading to complete compromise of confidentiality, integrity, and availability. The vulnerability is actively exploited in the wild, listed in CISA's KEV catalog, and has publicly available Nuclei templates for detection. This issue has garnered significant community discussion and media attention, highlighting its severe risk.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.0.0.4.384.46630CPE matchmatch criteria
cpe:2.3:o:asus:lyra_mini_firmware:*:*:*:*:*:*:*:*
< 3.0.0.4.386.42643CPE matchmatch criteria
cpe:2.3:o:asus:gt-ac2900_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
99.39%
Probability of exploitation in next 30 days
EPSS Percentile
99.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
Added to KEV · Jun 2, 2025
Nuclei: CVE-2021-32030 · Aug 16, 2021
This CVE's current EPSS score of 0.9939 is in the 100th percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
github.com / atredispartners/advisories/blob/master/ATREDIS-2020-0010.md
Broken LinkExploitThird Party Advisory
asus.com / Networking-IoT-Servers/WiFi-Routers/ASUS-Gaming-Routers/RT-AC2900/HelpDesk_BIOS
Product
asus.com / us/supportonly/lyra%20mini/helpdesk_bios
Product
atredis.com / blog/2021/4/30/asus-authentication-bypass
Exploit