# Active debug code in Ubiquiti Inc UniFi OS Server and others CVE record · `CVE-2026-77545` - **Identifiers:** `CVE-2026-77545` - **State:** Confirmed - **Severity:** CVSS 9.0 Critical - **Critical:** Yes: CVSS 9+ - **CNA:** Ubiquiti - **Weakness (CWE):** [CWE-489](https://cwe.mitre.org/data/definitions/489.html) - **Tags:** [CWE-489](https://agentprime.io/advisories/tag/cwe-489.md) - **Technologies:** [Ubiquiti Inc UniFi OS Server](https://agentprime.io/advisories/technology/ubiquiti-inc-unifi-os-server.md) · [Ubiquiti Inc Cloud Keys](https://agentprime.io/advisories/technology/ubiquiti-inc-cloud-keys.md) · [Ubiquiti Inc Network Video Recorders](https://agentprime.io/advisories/technology/ubiquiti-inc-network-video-recorders.md) · [Ubiquiti Inc Enterprise Network Video Recorders](https://agentprime.io/advisories/technology/ubiquiti-inc-enterprise-network-video-recorders.md) · [Ubiquiti Inc Enterprise Network Attached Storage](https://agentprime.io/advisories/technology/ubiquiti-inc-enterprise-network-attached-storage.md) · [Ubiquiti Inc Dream Machines](https://agentprime.io/advisories/technology/ubiquiti-inc-dream-machines.md) · [Ubiquiti Inc Enterprise Firewall Core](https://agentprime.io/advisories/technology/ubiquiti-inc-enterprise-firewall-core.md) · [Ubiquiti Inc Dream Routers](https://agentprime.io/advisories/technology/ubiquiti-inc-dream-routers.md) · [Ubiquiti Inc Enterprise Fortress Gateway](https://agentprime.io/advisories/technology/ubiquiti-inc-enterprise-fortress-gateway.md) · [Ubiquiti Inc Cloud Gateways](https://agentprime.io/advisories/technology/ubiquiti-inc-cloud-gateways.md) · [Ubiquiti Inc Dream Wall](https://agentprime.io/advisories/technology/ubiquiti-inc-dream-wall.md) · [Ubiquiti Inc Express 7](https://agentprime.io/advisories/technology/ubiquiti-inc-express-7.md) · [Ubiquiti Inc Network Attached Storage](https://agentprime.io/advisories/technology/ubiquiti-inc-network-attached-storage.md) - **Published:** 26 Aug 2026 - **Updated:** 27 Aug 2026 - **Reviewed by a person:** No Published by the CVE Program (CNA: Ubiquiti) at 26 Aug 2026, 10:13 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. ## Critical Critical, because: - CVSS score 9.0: 9.0 or more. How we decide what’s critical: ## Affected products, as the CNA wrote them - Vendor: Ubiquiti Inc. Product: UniFi OS Server. - affected: `before 5.1.37` (semver) - Other versions: unaffected - Vendor: Ubiquiti Inc. Product: Cloud Keys. - affected: `before 5.1.31` (semver) - Other versions: unaffected - Vendor: Ubiquiti Inc. Product: Network Video Recorders. - affected: `before 5.1.31` (semver) - Other versions: unaffected - Vendor: Ubiquiti Inc. Product: Enterprise Network Video Recorders. - affected: `before 5.1.31` (semver) - Other versions: unaffected - Vendor: Ubiquiti Inc. Product: Enterprise Network Attached Storage. - affected: `before 5.1.31` (semver) - Other versions: unaffected - Vendor: Ubiquiti Inc. Product: Dream Machines. - affected: `before 5.1.31` (semver) - Other versions: unaffected - Vendor: Ubiquiti Inc. Product: Enterprise Firewall Core. - affected: `before 5.1.31` (semver) - Other versions: unaffected - Vendor: Ubiquiti Inc. Product: Dream Routers. - affected: `before 5.1.31` (semver) - Other versions: unaffected - Vendor: Ubiquiti Inc. Product: Enterprise Fortress Gateway. - affected: `before 5.1.31` (semver) - Other versions: unaffected - Vendor: Ubiquiti Inc. Product: Cloud Gateways. - affected: `before 5.1.31` (semver) - Other versions: unaffected - Vendor: Ubiquiti Inc. Product: Dream Wall. - affected: `before 5.1.31` (semver) - Other versions: unaffected - Vendor: Ubiquiti Inc. Product: Express 7. - affected: `before 5.1.31` (semver) - Other versions: unaffected - Vendor: Ubiquiti Inc. Product: Network Attached Storage. - affected: `before 5.1.32` (semver) - Other versions: unaffected ## Not analysed yet We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter. ## Severity and exploitation - 9.0 Critical, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H`, from CNA (Ubiquiti) - **CISA KEV:** Not listed. - **EPSS:** 0.0043, the 37th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days. ## Timeline This record came from the full history of the CVE Program, published 26 Aug 2026. New records show when each source confirmed them. ## Sources - [CVE List: CVE-2026-77545](https://www.cve.org/CVERecord?id=CVE-2026-77545) - [NVD: CVE-2026-77545](https://nvd.nist.gov/vuln/detail/CVE-2026-77545) ### References from the CNA - Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description. ## Check whether this affects you This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run. - With the agentprime MCP server (), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: - As JSON: - Everything that needs attention now: --- The web page: . Everything for agents: .