As of our latest check on 2026-05-18, 31.147.207.56 (Croatian Academic and Research Network, AS2108, Croatia) had 2 open ports (80, 443) and 13 known CVEs, 1 known to be exploited.
Known CVEs on this host
2open ports
19names pointing here
13known CVEs
1known exploited
Open ports and CVEs as of our latest check of this host, 2026-05-18.
CVEs by severity: HIGH 9MEDIUM 4
A match is an indication, not proof: it is based on the software version a service reported, and fixes are often backported without changing the version. See the list
Not a Tor relay, not a VPN or privacy relay address, and not on a current public blocklist.
Services (2)
80/tcpHTTPnginx/1.13.1213 CVEsfirst 2026-05-18 · last 2026-05-18
Status
400 Bad Request
Title
400 Bad Request
Server
nginx/1.13.12
Raw response
HTTP/1.1 400 Bad Request
Server: nginx/1.13.12
Date: Mon, 18 May 2026 10:35:56 GMT
Content-Type: text/html
Content-Length: 576
Connection: close
<html>
<head><title>400 Bad Request</title></head>
<body bgcolor="white">
<center><h1>400 Bad Request</h1></center>
<hr><center>nginx/1.13.12</center>
</body>
</html>
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443/tcpTLSfirst 2026-05-18 · last 2026-05-18
TLS
TLSv1.2
Certificate for
isvuri.inf.uniri.hr
Issued by
GEANT TLS RSA 1
Valid
2026-04-13 → 2026-10-29
Raw response
HTTP/1.1 400 Bad Request
Server: nginx/1.13.12
Date: Mon, 18 May 2026 10:35:57 GMT
Content-Type: text/html
Content-Length: 674
Connection: close
<html>
<head><title>400 The plain HTTP request was sent to HTTPS port</title></head>
<body bgcolor="white">
<center><h1>400 Bad Request</h1></center>
<center>The plain HTTP request was sent to HTTPS port</center>
<hr><center>nginx/1.13.12</center>
</body>
</html>
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Vulnerabilities
Port history
Every port that has answered a connection on this address, and when. A port is listed as open above only when a service was identified on it. Times are UTC.
Hostnames pointing to this address
19 names · as answered by each domain's own name servers