9.9 CVSS; affects a widely deployed network app (UniFi Protect); could disrupt security infrastructure and expose hosts.
CVE-2026-55115
SSRF flaw in UniFi Protect app allows host privilege escalation
Is CVE-2026-55115 being exploited?
Not confirmed. CVE-2026-55115 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.47% probability of exploitation in the next 30 days.
How severe is CVE-2026-55115?
CVE-2026-55115 is rated Critical with a CVSS score of 9.9. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-55115?
Yes. A fix has been recorded for CVE-2026-55115. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-55115 affect?
CVE-2026-55115 affects UniFi Protect Application. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-55115?
Patch when available; restrict app exposure to trusted networks
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Network user with access can escalate to host OS privileges via SSRF in UniFi Protect
Immediate action required
- affected< 7.1.83
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.