21/tcp
FTP
first 2026-07-03 · last 2026-07-09
- Banner
- 220 FTP Server ready.
Raw response
220 FTP Server ready.
Host
51.250.4.241
Tags: Hosting Expired certificate
As of our latest check on 2026-07-09, 51.250.4.241 (Yandex.Cloud LLC, AS200350, Russia) had 5 open ports (21, 22, 25, 80, 443) and 61 known CVEs, 3 known to be exploited.
Known CVEs on this host
5open ports
0names pointing here
61known CVEs
3known exploited
Open ports and CVEs as of our latest check of this host, 2026-07-09.
CVEs by severity: CRITICAL 9 HIGH 19 MEDIUM 20 LOW 13
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: 15 on a distribution build — the fix may be backported (openssh 7.4). See them
Not counted: 1 only affects another platform (php 7.4.33). See them
- Network
- Yandex.Cloud LLC AS200350
- Open ports
- 21, 22, 25, 80, 443 · at our latest check, 2026-07-09
- Location
- Russia RU
- Route
- 51.250.0.0/17 · announced by Yandex.Cloud LLC AS200350 RPKI valid
- Organisation
- Yandex.Cloud LLC · Enterprise
- Registry network
- RU-YANDEXCLOUD · 51.250.0.0 - 51.250.127.255 · Yandex.Cloud LLC · RIPE
- Abuse contact
- [email protected] · for RU-YANDEXCLOUD
- First seen
- 2026-07-03 23:20 UTC
- Last seen alive
- 2026-07-09 01:22 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 (5)
- Server
- SSH-2.0-OpenSSH_7.4
- Host key
- ssh-ed25519 e03d587a5e23c4b1…
Raw response
SSH-2.0-OpenSSH_7.4
- Banner
- 220 visuella.ru-central1.internal ESMTP Exim 4.96 Thu, 09 Jul 2026 01:21:59 +0000
Raw response
220 visuella.ru-central1.internal ESMTP Exim 4.96 Thu, 09 Jul 2026 01:21:02 +0000 500 unrecognized command 500 unrecognized command 500 unrecognized command 500 Too many unrecognized commands
- Status
- 200 OK
- Server
- nginx/1.20.2
- Powered by
- PHP/7.4.33
Raw response
HTTP/1.1 200 OK Server: nginx/1.20.2 Date: Thu, 09 Jul 2026 01:21:02 GMT Content-Type: text/html; charset=UTF-8 Content-Length: 0 Connection: keep-alive X-Powered-By: PHP/7.4.33 Set-Cookie: visit_id=711130; expires=Sun, 04-Jul-2027 01:21:02 GMT; Max-Age=31104000; path=/; HttpOnly Set-Cookie: visit_hash=974db07e7bfd054f7635e6af9b40b6d5; expires=Sun, 04-Jul-2027 01:21:02 GMT; Max-Age=31104000; path=/; HttpOnly Cache-Control: max-age=0 Expires: Thu, 09 Jul 2026 01:21:02 GMT
443/tcp
TLS
first 2026-07-03 · last 2026-07-09
- TLS
- TLSv1.2
- Certificate for
- visuella.ru
- Issued by
- YR2
- Valid
- 2026-06-01 → 2026-08-30
Raw response
HTTP/1.1 400 Bad Request Server: nginx/1.20.2 Date: Thu, 09 Jul 2026 01:21:02 GMT Content-Type: text/html Transfer-Encoding: chunked Connection: close 291 <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/1.20.2</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 --> 0
Vulnerabilities
Distribution build — the fix may be backported (15)
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 2 MEDIUM 11 LOW 1
| CVE | Software |
|---|---|
| CVE-2023-38408 CRITICAL 9.8 | openssh 7.4 · port 22 |
| CVE-2020-15778 HIGH 7.4 | openssh 7.4 · port 22 |
| CVE-2021-41617 HIGH 7.0 | openssh 7.4 · port 22 |
| CVE-2019-6109 MEDIUM 6.8 | openssh 7.4 · port 22 |
| CVE-2019-6110 MEDIUM 6.8 | openssh 7.4 · port 22 |
| CVE-2023-51385 MEDIUM 6.5 | openssh 7.4 · port 22 |
| CVE-2019-6111 MEDIUM 5.9 | openssh 7.4 · port 22 |
| CVE-2020-14145 MEDIUM 5.9 | openssh 7.4 · port 22 |
| CVE-2023-48795 MEDIUM 5.9 | openssh 7.4 · port 22 |
| CVE-2016-20012 MEDIUM 5.3 | openssh 7.4 · port 22 |
| CVE-2017-15906 MEDIUM 5.3 | openssh 7.4 · port 22 |
| CVE-2018-15473 MEDIUM 5.3 | openssh 7.4 · port 22 |
| CVE-2018-15919 MEDIUM 5.3 | openssh 7.4 · port 22 |
| CVE-2018-20685 MEDIUM 5.3 | openssh 7.4 · port 22 |
| CVE-2021-36368 LOW 3.7 | openssh 7.4 · port 22 |
Only affects another platform (1)
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: CRITICAL 1
| CVE | Software |
|---|---|
| CVE-2024-3566 CRITICAL 9.8 | php 7.4.33 · 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.