Host

81.91.92.38

Tags: End-of-life software

As of our latest check on 2026-05-24, 81.91.92.38 (Web4U s.r.o., AS39790, Czechia) had 2 open ports (22, 80) and 135 known CVEs, 2 known to be exploited.

Known CVEs on this host

2open ports
0names pointing here
135known CVEs
2known exploited

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

CVEs by severity: CRITICAL 27 HIGH 55 MEDIUM 46 LOW 7

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: 24 on a distribution build — the fix may be backported (openssh 6.7p1). See them

Not counted: 4 only affect another platform (http_server 2.4.10). See them

Network
Web4U s.r.o. AS39790
Open ports
22, 80 · at our latest check, 2026-05-24
Location
Czechia CZ
Hostname
vs1082.server4u.cz · reverse DNS, checked 2026-10-04
Route
81.91.88.0/21 · announced by Web4U s.r.o. AS39790 RPKI valid
Organisation
Web4U s.r.o. · Content / hosting
Registry network
WEB4U-NET-CUST-92 · 81.91.92.0 - 81.91.92.255 · RIPE
Abuse contact
[email protected] · for WEB4U-NET-CUST-92
First seen
2026-05-24 02:32 UTC
Last seen alive
2026-05-24 02:32 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 (2)

22/tcp SSH OpenSSH_6.7p1 24 CVEs first 2026-05-24 · last 2026-05-24
Server
SSH-2.0-OpenSSH_6.7p1 Debian-5+deb8u8
Host key
ecdsa-sha2-nistp256 da2a035c71c0a0d1…
Raw response
SSH-2.0-OpenSSH_6.7p1 Debian-5+deb8u8
80/tcp HTTP Apache/2.4.10 111 CVEs first 2026-05-24 · last 2026-05-24
Status
200 OK
Server
Apache/2.4.10
Raw response
HTTP/1.1 200 OK
Date: Sun, 24 May 2026 02:32:13 GMT
Server: Apache/2.4.10
Last-Modified: Fri, 12 Jun 2015 14:38:48 GMT
ETag: "2-5185310e5d972"
Accept-Ranges: bytes
Content-Length: 2
Content-Type: text/html

Hi

Vulnerabilities

Distribution build — the fix may be backported (24)

These CVEs were matched on software built by an operating-system distribution whose package revision the service does not show. Distributions often fix a flaw without changing the upstream version number, so whether this build is affected cannot be told from its version. They are not counted.

CVEs by severity: CRITICAL 1 HIGH 9 MEDIUM 14

CVESoftware
CVE-2016-1908 CRITICAL 9.8 openssh 6.7p1 · port 22
CVE-2015-5600 HIGH 8.1 openssh 6.7p1 · port 22
CVE-2016-0778 HIGH 8.1 openssh 6.7p1 · port 22
CVE-2015-8325 HIGH 7.8 openssh 6.7p1 · port 22
CVE-2016-10012 HIGH 7.8 openssh 6.7p1 · port 22
CVE-2016-10708 HIGH 7.5 openssh 6.7p1 · port 22
CVE-2016-6515 HIGH 7.5 openssh 6.7p1 · port 22
CVE-2016-10009 HIGH 7.3 openssh 6.7p1 · port 22
CVE-2015-6564 HIGH 7.0 openssh 6.7p1 · port 22
CVE-2016-10010 HIGH 7.0 openssh 6.7p1 · port 22
CVE-2019-6109 MEDIUM 6.8 openssh 6.7p1 · port 22
CVE-2019-6110 MEDIUM 6.8 openssh 6.7p1 · port 22
CVE-2016-0777 MEDIUM 6.5 openssh 6.7p1 · port 22
CVE-2015-6563 MEDIUM 6.4 openssh 6.7p1 · port 22
CVE-2016-3115 MEDIUM 6.4 openssh 6.7p1 · port 22
CVE-2016-10011 MEDIUM 6.2 openssh 6.7p1 · port 22
CVE-2016-6210 MEDIUM 5.9 openssh 6.7p1 · port 22
CVE-2019-6111 MEDIUM 5.9 openssh 6.7p1 · port 22
CVE-2020-14145 MEDIUM 5.9 openssh 6.7p1 · port 22
CVE-2017-15906 MEDIUM 5.3 openssh 6.7p1 · port 22
CVE-2018-15473 MEDIUM 5.3 openssh 6.7p1 · port 22
CVE-2018-15919 MEDIUM 5.3 openssh 6.7p1 · port 22
CVE-2018-20685 MEDIUM 5.3 openssh 6.7p1 · port 22
CVE-2015-5352 MEDIUM 4.3 openssh 6.7p1 · port 22
Only affects another platform (4)

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 MEDIUM 2

CVESoftware
CVE-2024-40898 HIGH 7.5 http_server 2.4.10 · port 80
CVE-2024-43394 HIGH 7.5 http_server 2.4.10 · port 80
CVE-2020-13938 MEDIUM 5.5 http_server 2.4.10 · port 80
CVE-2022-28330 MEDIUM 5.3 http_server 2.4.10 · 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.