CVE•Published 2026-08-26•Modified 2026-08-28•1 article on news•5 live references•NVD data
CVE-2026-77540
Vulnerability data via NVD (ingested)
CVSS v3.1
9.1
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
EPSS percentile
54
Exploit Prediction Scoring System · top 46% of all CVEs
Weaknesses (CWE)
Description
A malicious actor with access to the network and high privileges could exploit an Improper Input Validation vulnerability found in UniFi OS Server to execute a Command Injection on the host device.
Timeline
Published 2026-08-26
Modified 2026-08-28
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
More intel sources (5)
Shodan report
vuln:CVE-2026-77540Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-77540Censys host search filtered to this CVE id.
grep.app
CVE-2026-77540Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-77540GitHub code search for direct mentions.
Google dork
"CVE-2026-77540" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-77540 on GitHub.