CVE-2026-77543
CVSS v3
9.9
CRITICAL
EPSS Score
1.4 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
A malicious actor with access to the network and low privileges could exploit an Improper Input Validation vulnerability found in UniFi Access Application to execute a Command Injection on the host device.
Technical details
- Published
- 2026-08-26
- Last Modified
- 2026-08-26
Frequently asked questions
What is CVE-2026-77543?
A malicious actor with access to the network and low privileges could exploit an Improper Input Validation vulnerability found in UniFi Access Application to execute a Command Injection on the host device.
Is CVE-2026-77543 actively exploited?
Active exploitation of CVE-2026-77543 has not been confirmed. Its EPSS score was 1.4% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2026-77543?
CVE-2026-77543 has a CVSS v3 base score of 9.9 (CRITICAL severity).
Is CVE-2026-77543 affecting your environment?
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