How severe is CVE-2026-55115?

CVE-2026-55115 has a CVSS 3.x base score of 9.9, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-55115 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-55115?

CVE-2026-55115 affects Ui Unifi Protect. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-55115?

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-2026-55115 published?

CVE-2026-55115 was published on 2026-07-02 and last updated on 2026-07-07.

CVE-2026-55115

CVE-2026-55115 is a critical-severity vulnerability in Ui Unifi Protect with a CVSS 3.x base score of 9.9. 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-918.

Key facts

Severity: Critical (CVSS 3.x base score 9.9)
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-918
Affected product: Ui Unifi Protect
Published: 2026-07-02
Last modified: 2026-07-07

Description

A malicious actor with access to the network and low privileges could exploit a Server-Side Request Forgery (SSRF) in UniFi Protect Application to escalate privileges on the host device.

Frequently asked questions

What is CVE-2026-55115?: A malicious actor with access to the network and low privileges could exploit a Server-Side Request Forgery (SSRF) in UniFi Protect Application to escalate privileges on the host device.
How severe is CVE-2026-55115?: CVE-2026-55115 has a CVSS 3.x base score of 9.9, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-55115 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-55115?: CVE-2026-55115 affects Ui Unifi Protect. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-55115?: 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-2026-55115 published?: CVE-2026-55115 was published on 2026-07-02 and last updated on 2026-07-07.

References

https://community.ui.com/releases/Security-Advisory-Bulletin-066-066/984eceb3-49c8-4227-942d-671c289b3afc

Affected products (1)

cpe:2.3:a:ui:unifi_protect:*:*:*:*:*:*:*:*

More vulnerabilities in Ui Unifi Protect

CVE-2021-22943 — Critical (CVSS 9.6): A vulnerability found in UniFi Protect application V1.18.1 and earlier permits a malicious actor who has already gained…
CVE-2026-56841 — High (CVSS 8.8): A malicious actor with access to the network and low privileges could exploit an authenticated SQL Injection…
CVE-2026-21633 — High (CVSS 8.8): A malicious actor with access to the adjacent network could obtain unauthorized access to a UniFi Protect Camera by…
CVE-2021-22957 — High (CVSS 8.8): A Cross-Origin Resource Sharing (CORS) vulnerability found in UniFi Protect application Version 1.19.2 and earlier…
CVE-2026-54408 — High (CVSS 8.6): A malicious actor with access to the network could exploit an Improper Access Control vulnerability found in UniFi…
CVE-2026-54407 — High (CVSS 8.6): A malicious actor with access to the network could exploit an Improper Access Control vulnerability found in UniFi…

All CVEs affecting Ui Unifi Protect →

Other CWE-918 (Server-Side Request Forgery (SSRF)) vulnerabilities

CVE-2026-47938 — Critical (CVSS 10.0): Adobe Campaign Classic (ACC) versions 7.4.3 build 9394 and earlier are affected by a Server-Side Request Forgery (SSRF)…
CVE-2026-35431 — Critical (CVSS 10.0): Server-side request forgery (ssrf) in Microsoft Entra ID Entitlement Management allows an unauthorized attacker to…
CVE-2026-32186 — Critical (CVSS 10.0): Server-side request forgery (ssrf) in Microsoft Bing allows an unauthorized attacker to elevate privileges over a…
CVE-2026-33107 — Critical (CVSS 10.0): Server-side request forgery (ssrf) in Azure Databricks allows an unauthorized attacker to elevate privileges over a…
CVE-2026-32871 — Critical (CVSS 10.0): FastMCP is a Pythonic way to build MCP servers and clients. Prior to version 3.2.0, the OpenAPIProvider in FastMCP…
CVE-2026-32169 — Critical (CVSS 10.0): Server-side request forgery (ssrf) in Azure Cloud Shell allows an unauthorized attacker to elevate privileges over a…

Browse all CWE-918 (Server-Side Request Forgery (SSRF)) vulnerabilities →