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CVE-2020-8171

31
FAUCET Score

CVE-2020-8171 is a critical command injection vulnerability affecting Ubiquiti AirMax AirOS firmware versions 6.2.0 and prior for TI, XW, and XM boards. An unauthenticated attacker can craft a malicious input string to bypass filters, leading to remote code execution. With a CVSS score of 9.8 (Critical), this vulnerability allows for complete compromise of confidentiality, integrity, and availability. While no public exploits or active exploitation have been observed, and community discussion is minimal, immediate patching to AirOS firmware v6.3.0 or later is strongly recommended due to the high severity.

Impacted Technologies

VendorProductVersion(s)CPE
<= 6.2.0CPE matchmatch criteria
cpe:2.3:o:ui:airos:*:*:*:*:*:*:*:*

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
3.88%
Probability of exploitation in next 30 days
EPSS Percentile
89.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0388 is in the 82nd percentile among its peer group of 36,862 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

No media coverage found for this CVE.

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

community.ui.com / releases/airMAX-M-v6-3-0/c8d5dec9-4030-4d7e-b23f-6a5b35ed3d83
Vendor Advisory
community.ui.com / releases/Security-advisory-bulletin-011-011/d0d411a5-6dcb-4988-9709-d57f50957261
Vendor Advisory
ui.com / download/airmax-m
Release Notes