Host

158.194.76.244

As of our latest check on 2026-06-03, 158.194.76.244 (CESNET z.s.p.o., AS2852, Czechia) had 3 open ports (22, 80, 443) and 102 known CVEs, 1 known to be exploited.

Known CVEs on this host

3open ports
0names pointing here
102known CVEs
1known exploited

Open ports and CVEs as of our latest check of this host, 2026-06-03.

CVEs by severity: CRITICAL 13 HIGH 45 MEDIUM 30 LOW 14

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

Not counted: 2 only affect another platform (http_server 2.4.57). See them

Network
CESNET z.s.p.o. AS2852
Open ports
22, 80, 443 · at our latest check, 2026-06-03
Location
Czechia CZ
Hostname
kef.upol.cz · reverse DNS, checked 2026-10-05
Route
158.194.0.0/16 · announced by CESNET z.s.p.o. AS2852 RPKI valid
Organisation
CESNET · Educational/Research
Registry network
UPOL-TCZ · 158.194.0.0 - 158.194.255.255 · Univerzita Palackeho v Olomouci · ARIN
Abuse contact
[email protected] · for UPOL-TCZ
First seen
2026-06-03 04:46 UTC
Last seen alive
2026-06-03 04:47 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 34 CVEs first 2026-06-03 · last 2026-06-03
Server
SSH-2.0-OpenSSH_9.2p1 Debian-2
Host key
ssh-ed25519 1a79c9b516b295ce…
Raw response
SSH-2.0-OpenSSH_9.2p1 Debian-2
80/tcp HTTP Apache/2.4.57 (Debian) 68 CVEs first 2026-06-03 · last 2026-06-03
Status
400 Bad Request
Server
Apache/2.4.57 (Debian)
Raw response
HTTP/1.1 400 Bad Request
Date: Wed, 03 Jun 2026 04:46:25 GMT
Server: Apache/2.4.57 (Debian)
X-Content-Type-Options: nosniff
Cache-Control: no-cache, private
Content-Length: 52
Connection: close
Content-Type: text/html; charset=UTF-8

The provided host name is not valid for this server.
443/tcp TLS first 2026-06-03 · last 2026-06-03
TLS
TLSv1.2
Certificate for
kef.upol.cz, www.kef.upol.cz
Issued by
GEANT TLS RSA 1
Valid
2025-11-25 → 2026-11-25
Raw response
HTTP/1.1 400 Bad Request
Date: Wed, 03 Jun 2026 04:46:25 GMT
Server: Apache/2.4.57 (Debian)
Strict-Transport-Security: max-age=15552000; includeSubDomains
Content-Length: 439
Connection: close
Content-Type: text/html; charset=iso-8859-1

<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>400 Bad Request</title>
</head><body>
<h1>Bad Request</h1>
<p>Your browser sent a request that this server could not understand.<br />
Reason: You're speaking plain HTTP to an SSL-enabled server port.<br />
 Instead use the HTTPS scheme to access this URL, please.<br />
</p>
<hr>
<address>Apache/2.4.57 (Debian) Server at kef.upol.cz Port 80</address>
</body></html>

Vulnerabilities

Fixed by the distribution (2)

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: LOW 2

CVESoftware
CVE-2026-106588 LOW 3.1 openssh 9.2p1 · port 22
CVE-2026-106589 LOW 2.9 openssh 9.2p1 · port 22
Only affects another platform (2)

These CVEs need a platform this host visibly does not run (for example a flaw of the Windows build on a Linux host). They are not counted.

CVEs by severity: HIGH 2

CVESoftware
CVE-2024-40898 HIGH 7.5 http_server 2.4.57 · port 80
CVE-2024-43394 HIGH 7.5 http_server 2.4.57 · port 80

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.