CVE-2026-77553
CRITICALCVSS 9.9/10EPSS 0.23%
Last modified
CVE-2026-77553 is a critical-severity vulnerability rated 9.9/10 on the CVSS scale. A malicious actor with access to the network and low privileges could exploit an Improper Access Control vulnerability found in UniFi Access Application to escalate privileges on the host device.. EPSS estimates a 0.23% chance of exploitation in the next 30 days.
Description
A malicious actor with access to the network and low privileges could exploit an Improper Access Control vulnerability found in UniFi Access Application to escalate privileges on the host device.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness Enumeration
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2026-77553?
A malicious actor with access to the network and low privileges could exploit an Improper Access Control vulnerability found in UniFi Access Application to escalate privileges on the host device.
How severe is CVE-2026-77553?
CVE-2026-77553 has a CVSS score of 9.9/10 (CRITICAL severity). The EPSS model estimates a 0.23% probability of exploitation in the next 30 days.
How do I fix CVE-2026-77553?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- Uncovering a hidden BOLA in Appsmith's snapshot logicStrix autonomously discovered a BOLA/IDOR vulnerability in Appsmith's snapshot deletion path.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-77548A malicious actor with access to the network and low privile…9.9
- CVE-2026-77549A malicious actor with access to the network and under certa…9
- CVE-2026-7755IBM Langflow OSS 1.0.0 through 1.10.0 Langflow could allow r…8.8
- CVE-2026-77550A malicious actor with access to the network could exploit a…10
- CVE-2026-77551A malicious actor with access to the network and under certa…9
- CVE-2026-77552A malicious actor with access to the network could exploit a…9.8
- CVE-2026-77554A malicious actor with access to the network could exploit a…10
- CVE-2026-77557A malicious actor with access to the network could exploit a…9.8
- CVE-2026-77567Filament is a collection of full-stack components for accele…8.1
- CVE-2026-77573Weblate is a web-based continuous localization platform used…3.5
- CVE-2026-77584Tor before 0.4.9.10 did not reject a CONFLUX_LINK cell that …7
- CVE-2026-77585The Okta Privileged Access client does not reject a leading …5.3
Are you affected by CVE-2026-77553?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST