How severe is CVE-2020-8171?

CVE-2020-8171 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-2020-8171 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-8171?

CVE-2020-8171 affects Ui Airos. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-8171?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2020-8171 published?

CVE-2020-8171 was published on 2020-05-26 and last updated on 2026-06-17.

CVE-2020-8171

CVE-2020-8171 is a critical-severity vulnerability in Ui Airos with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 4% (89th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Ui Airos
Published: 2020-05-26
Last modified: 2026-06-17

Description

We have recently released new version of AirMax AirOS firmware v6.3.0 for TI, XW and XM boards that fixes vulnerabilities found on AirMax AirOS v6.2.0 and prior TI, XW and XM boards, according to the description below:There are certain end-points containing functionalities that are vulnerable to command injection. It is possible to craft an input string that passes the filter check but still contains commands, resulting in remote code execution.Mitigation:Update to the latest AirMax AirOS firmware version available at the AirMax download page.

Frequently asked questions

What is CVE-2020-8171?: We have recently released new version of AirMax AirOS firmware v6.3.0 for TI, XW and XM boards that fixes vulnerabilities found on AirMax AirOS v6.2.0 and prior TI, XW and XM boards, according to the description below:There are certain end-points containing functionalities that are vulnerable to command injection. It is possible to craft an input string that passes the filter check but still contains commands, resulting in remote code execution.Mitigation:Update to the latest AirMax AirOS firmware version available at the AirMax download page.
How severe is CVE-2020-8171?: CVE-2020-8171 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-2020-8171 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-8171?: CVE-2020-8171 affects Ui Airos. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-8171?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-8171 published?: CVE-2020-8171 was published on 2020-05-26 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:ui:airos:*:*:*:*:*:*:*:*

More vulnerabilities in Ui Airos

CVE-2010-5330 — Critical (CVSS 9.8): On certain Ubiquiti devices, Command Injection exists via a GET request to stainfo.cgi (aka Show AP info) because the…
CVE-2020-8168 — High (CVSS 8.8): We have recently released new version of AirMax AirOS firmware v6.3.0 for TI, XW and XM boards that fixes…
CVE-2017-0938 — High (CVSS 7.5): Denial of Service attack in airMAX < 8.3.2 , airMAX < 6.0.7 and EdgeMAX < 1.9.7 allow attackers to use the Discovery…
CVE-2020-8170 — Medium (CVSS 6.1): We have recently released new version of AirMax AirOS firmware v6.3.0 for TI, XW and XM boards that fixes…

All CVEs affecting Ui Airos →

Other CWE-78 (OS Command Injection) vulnerabilities

CVE-2026-19188 — Critical (CVSS 10.0): A critical OS command injection vulnerability has been identified in the Haiwell IoT Cloud HMI Gateway product. The…
CVE-2026-48362 — Critical (CVSS 10.0): ColdFusion is affected by an Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')…
CVE-2026-16812 — Critical (CVSS 10.0): VeloCloud Orchestrator (VCO) on-prem has a security issue where this issue may allow a remote attacker to access…
CVE-2026-6516 — Critical (CVSS 10.0): Zohocorp ManageEngine ADAudit Plus versions before 8606 are affected by Unauthenticated Remote code execution due to…
CVE-2026-46339 — Critical (CVSS 10.0): 9Router is an AI router & token saver. From 0.4.30 until 0.4.37, 9Router's src/proxy.js middleware did not protect…
CVE-2026-59726 — Critical (CVSS 10.0): Ruflo is an agent meta-harness for Claude Code and Codex. Prior to 3.16.3, ruflo's default docker-compose deployment…

Browse all CWE-78 (OS Command Injection) vulnerabilities →