81.91.84.99 — 3 open ports, 18 known CVEs, network Web4U s.r.o.

Known CVEs on this host

3open ports

0names pointing here

18known CVEs

0known exploited

Open ports and CVEs as of our latest check of this host, 2026-05-24.

CVEs by severity: HIGH 4 MEDIUM 8 LOW 6

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 counted: 7 fixed by the distribution (openssh 9.2p1). See them

Network: Web4U s.r.o. AS39790
Open ports: 22, 80, 443 · at our latest check, 2026-05-24
Location: Czechia CZ
Hostname: docker-lite.uvminteractive.com · reverse DNS, checked 2026-10-04
Route: 81.91.80.0/21 · announced by Web4U s.r.o. AS39790 RPKI valid
Organisation: Web4U s.r.o. · Content / hosting
Registry network: WEB4U-NET-CUST-84 · 81.91.84.0 - 81.91.84.255 · Web4U s.r.o. · RIPE
Abuse contact: [email protected] · for WEB4U-NET-CUST-84
First seen: 2026-05-24 02:32 UTC
Last seen alive: 2026-05-24 02:33 UTC
Hosted domains: No host name points here

Reputation

Not a Tor relay, not a VPN or privacy relay address, and not on a current public blocklist.

Services (3)

22/tcp SSH OpenSSH_9.2p1 18 CVEs first 2026-05-24 · last 2026-05-24

Server: SSH-2.0-OpenSSH_9.2p1 Debian-2+deb12u5
Host key: ssh-ed25519 3b538f206eddcfc8…

Raw response

SSH-2.0-OpenSSH_9.2p1 Debian-2+deb12u5

80/tcp HTTP nginx first 2026-05-24 · last 2026-05-24

Status: 301 Moved Permanently
Title: 301 Moved Permanently
Server: nginx

Raw response

HTTP/1.1 301 Moved Permanently
Server: nginx
Date: Sun, 24 May 2026 02:32:30 GMT
Content-Type: text/html
Content-Length: 162
Connection: keep-alive
Location: https://81.91.84.99/

<html>
<head><title>301 Moved Permanently</title></head>
<body>
<center><h1>301 Moved Permanently</h1></center>
<hr><center>nginx</center>
</body>
</html>

443/tcp TLS first 2026-05-24 · last 2026-05-24

TLS: TLSv1.2
Certificate for: docker-lite.uvminteractive.com
Issued by: Let's Encrypt Authority X3
Valid: 2019-08-01 → 2019-10-30

Raw response

HTTP/1.1 400 Bad Request
Server: nginx
Date: Sun, 24 May 2026 02:32:30 GMT
Content-Type: text/html
Content-Length: 650
Connection: close

<html>
<head><title>400 The plain HTTP request was sent to HTTPS port</title></head>
<body>
<center><h1>400 Bad Request</h1></center>
<center>The plain HTTP request was sent to HTTPS port</center>
<hr><center>nginx</center>
</body>
</html>
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->

Vulnerabilities

Fixed by the distribution (7)

The distribution's security data says the package revision this service shows already has the fix for these CVEs, or that its build is not affected. They are not counted.

CVEs by severity: CRITICAL 2 HIGH 1 MEDIUM 4

CVE	Software
CVE-2023-28531 CRITICAL 9.8	openssh 9.2p1 · port 22
CVE-2023-38408 CRITICAL 9.8	openssh 9.2p1 · port 22
CVE-2024-6387 HIGH 8.1	openssh 9.2p1 · port 22
CVE-2025-26465 MEDIUM 6.8	openssh 9.2p1 · port 22
CVE-2023-51385 MEDIUM 6.5	openssh 9.2p1 · port 22
CVE-2023-48795 MEDIUM 5.9	openssh 9.2p1 · port 22
CVE-2023-51384 MEDIUM 5.5	openssh 9.2p1 · port 22

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.

Report an issue with this page