CVE-2026-77540
An attacker can exploit multiple vulnerabilities in Ubiquiti UnifiOS to execute arbitrary code, escalate privileges, and bypass security measures.
CSIRTS triage
- What
- Multiple vulnerabilities in UnifiOS allow remote code execution, privilege escalation, and security bypass.
- Who is affected
- All Ubiquiti UnifiOS deployments are affected.
- Urgency
- High priority; multiple critical attack vectors present including RCE and privilege escalation warrant immediate remediation.
- Action
- Check Ubiquiti security advisories for affected version ranges and apply available patches immediately.
AI-assisted analysis generated from the source advisory — verify against the original.
⚡ Watch CVE-2026-77540
Get an email if CVE-2026-77540 is added to CISA KEV, gains public exploit code, or a new advisory cites it — max one per day, one-click unsubscribe.
Advisory coverage (3)
- unknownNCSC-2026-0330 [1.00] [M/H] Kwetsbaarheden verholpen in UniFi-producten van Ubiquitincsc-nl · 2026-08-27
- high[NEW] [high] Ubiquiti UnifiOS: Multiple vulnerabilitiescert-bund · 2026-08-27
- criticalCVE-2026-77540: A malicious actor with access to the network and high privileges could exploit an Improper Inp…nvd · 2026-08-26
External references
Embed the live status
— this badge updates automatically when the KEV or exploit status changes. How to embed it →
[](https://www.csirts.com/cve/CVE-2026-77540)