OSN

Host

18.27.78.98

Tags: Self-signed certificate Expired certificate

As of our latest check on 2026-06-17, 18.27.78.98 (Massachusetts Institute of Technology, AS3, United States) had 3 open ports (22, 80, 443) and 26 known CVEs.

Known CVEs on this host

3open ports
0names pointing here
26known CVEs
0known exploited

Open ports and CVEs as of our latest check of this host, 2026-06-17.

CVEs by severity: CRITICAL 3 HIGH 12 MEDIUM 9 LOW 2

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: 61 on a distribution build — the fix may be backported (http_server 2.4.52). See them

Not counted: 14 fixed by the distribution (openssh 8.9p1). See them

Not counted: 3 only affect another platform (http_server 2.4.52). See them

Network
Massachusetts Institute of Technology AS3
Open ports
22, 80, 443 · at our latest check, 2026-06-17
Location
United States US
Hostname
blindspot.media.mit.edu · reverse DNS, checked 2026-10-04
Route
18.27.0.0/16 · announced by Massachusetts Institute of Technology AS3 no RPKI authorisation
Organisation
Massachusetts Institute of Technology · Educational/Research
Registry network
MIT · 18.0.0.0 - 18.31.255.255 · Massachusetts Institute of Technology · ARIN
Abuse contact
[email protected] · for MIT
First seen
2026-06-17 09:30 UTC
Last seen alive
2026-06-17 09:43 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_8.9p1 11 CVEs first 2026-06-17 · last 2026-06-17
Server
SSH-2.0-OpenSSH_8.9p1 Ubuntu-3ubuntu0.15
Host key
ssh-ed25519 082259c2ab136fcd…
Raw response 
SSH-2.0-OpenSSH_8.9p1 Ubuntu-3ubuntu0.15
80/tcp HTTP Apache/2.4.52 (Ubuntu) 15 CVEs first 2026-06-17 · last 2026-06-17
Status
200 OK
Title
Apache2 Ubuntu Default Page: It works
Server
Apache/2.4.52 (Ubuntu)
Raw response 
HTTP/1.1 200 OK
Date: Wed, 17 Jun 2026 09:42:27 GMT
Server: Apache/2.4.52 (Ubuntu)
Last-Modified: Thu, 12 Mar 2020 16:10:15 GMT
ETag: "2aa6-5a0aa96a36461-gzip"
Accept-Ranges: bytes
Vary: Accept-Encoding
Content-Encoding: gzip
Content-Length: 3138
Content-Type: text/html

��Z�s�6���U��$'�����"{&�cҙ��$����"!	c���d5��~�H�%��5�đH���o��仫����n��Ҭ�����/��7�=�ë����黷d������˄�0���GzKc�qn6�`�<�jN?�Hk���ǁ)�b�.�&���J$��������통�L����w2�s�b2WrE̒�+6�4!R��d.�4���
o�6$KcjX<&'����p8�ڇd����Y-S	3�,[�px2��������d4��['+f��;`�����w)�3�nS�#��:��`BT�%��Tif�?Mo�	=%Í`�R-ى�Ԛ�LrK �/�l��ד�-v��
F��l"�{d�bN�{:R�%�z��g�aE�hL�Ӈ��K��y�h}���7������su�sXY�{yd��...<truncated>
443/tcp TLS first 2026-06-17 · last 2026-06-17
TLS
TLSv1.2
Certificate for
blindspot.media.mit.edu
Issued by
blindspot.media.mit.edu
Valid
2022-06-10 → 2023-06-10
Note
self-signed certificate
Raw response 
HTTP/1.1 400 Bad Request
Date: Wed, 17 Jun 2026 09:42:27 GMT
Server: Apache/2.4.52 (Ubuntu)
Content-Length: 451
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/2.4.52 (Ubuntu) Server at blindspot.media.mit.edu Port 80</address>
</body></html>

Vulnerabilities

Distribution build — the fix may be backported (61)

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. 1 of them is known to be exploited.

CVEs by severity: CRITICAL 15 HIGH 32 MEDIUM 14

CVESoftware
CVE-2024-38475 CRITICAL 9.1 known exploited http_server 2.4.52 · port 80
CVE-2022-22720 CRITICAL 9.8 http_server 2.4.52 · port 80
CVE-2022-23943 CRITICAL 9.8 http_server 2.4.52 · port 80
CVE-2022-31813 CRITICAL 9.8 http_server 2.4.52 · port 80
CVE-2023-25690 CRITICAL 9.8 http_server 2.4.52 · port 80
CVE-2024-38474 CRITICAL 9.8 http_server 2.4.52 · port 80
CVE-2024-38476 CRITICAL 9.8 http_server 2.4.52 · port 80
CVE-2026-28780 CRITICAL 9.8 http_server 2.4.52 · port 80
CVE-2026-29167 CRITICAL 9.8 http_server 2.4.52 · port 80
CVE-2026-44631 CRITICAL 9.8 http_server 2.4.52 · port 80
CVE-2022-22721 CRITICAL 9.1 http_server 2.4.52 · port 80
CVE-2022-28615 CRITICAL 9.1 http_server 2.4.52 · port 80
CVE-2025-23048 CRITICAL 9.1 http_server 2.4.52 · port 80
CVE-2026-42535 CRITICAL 9.1 http_server 2.4.52 · port 80
CVE-2022-36760 CRITICAL 9.0 http_server 2.4.52 · port 80
CVE-2026-24072 HIGH 8.8 http_server 2.4.52 · port 80
CVE-2025-58098 HIGH 8.3 http_server 2.4.52 · port 80
CVE-2024-38473 HIGH 8.1 http_server 2.4.52 · port 80
CVE-2006-20001 HIGH 7.5 http_server 2.4.52 · port 80
CVE-2022-22719 HIGH 7.5 http_server 2.4.52 · port 80
CVE-2022-26377 HIGH 7.5 http_server 2.4.52 · port 80
CVE-2022-29404 HIGH 7.5 http_server 2.4.52 · port 80
CVE-2022-30556 HIGH 7.5 http_server 2.4.52 · port 80
CVE-2023-27522 HIGH 7.5 http_server 2.4.52 · port 80
CVE-2023-31122 HIGH 7.5 http_server 2.4.52 · port 80
CVE-2024-27316 HIGH 7.5 http_server 2.4.52 · port 80
CVE-2024-38472 HIGH 7.5 http_server 2.4.52 · port 80
CVE-2024-38477 HIGH 7.5 http_server 2.4.52 · port 80
CVE-2024-39573 HIGH 7.5 http_server 2.4.52 · port 80
CVE-2024-42516 HIGH 7.5 http_server 2.4.52 · port 80
CVE-2024-43204 HIGH 7.5 http_server 2.4.52 · port 80
CVE-2024-47252 HIGH 7.5 http_server 2.4.52 · port 80
CVE-2025-49630 HIGH 7.5 http_server 2.4.52 · port 80
CVE-2025-53020 HIGH 7.5 http_server 2.4.52 · port 80
CVE-2025-55753 HIGH 7.5 http_server 2.4.52 · port 80
CVE-2025-59775 HIGH 7.5 http_server 2.4.52 · port 80
CVE-2026-29169 HIGH 7.5 http_server 2.4.52 · port 80
CVE-2026-34059 HIGH 7.5 http_server 2.4.52 · port 80
CVE-2026-34355 HIGH 7.5 http_server 2.4.52 · port 80
CVE-2026-34356 HIGH 7.5 http_server 2.4.52 · port 80
CVE-2026-42536 HIGH 7.5 http_server 2.4.52 · port 80
CVE-2026-49975 HIGH 7.5 http_server 2.4.52 · port 80
CVE-2025-49812 HIGH 7.4 http_server 2.4.52 · port 80
CVE-2023-38709 HIGH 7.3 http_server 2.4.52 · port 80
CVE-2026-29168 HIGH 7.3 http_server 2.4.52 · port 80
CVE-2026-44185 HIGH 7.3 http_server 2.4.52 · port 80
CVE-2026-44186 HIGH 7.3 http_server 2.4.52 · port 80
CVE-2025-65082 MEDIUM 6.5 http_server 2.4.52 · port 80
CVE-2026-33523 MEDIUM 6.5 http_server 2.4.52 · port 80
CVE-2026-43951 MEDIUM 6.5 http_server 2.4.52 · port 80
CVE-2024-24795 MEDIUM 6.3 http_server 2.4.52 · port 80
CVE-2026-29170 MEDIUM 6.1 http_server 2.4.52 · port 80
CVE-2023-45802 MEDIUM 5.9 http_server 2.4.52 · port 80
CVE-2026-44119 MEDIUM 5.5 http_server 2.4.52 · port 80
CVE-2025-66200 MEDIUM 5.4 http_server 2.4.52 · port 80
CVE-2022-28614 MEDIUM 5.3 http_server 2.4.52 · port 80
CVE-2022-37436 MEDIUM 5.3 http_server 2.4.52 · port 80
CVE-2026-33007 MEDIUM 5.3 http_server 2.4.52 · port 80
CVE-2026-33857 MEDIUM 5.3 http_server 2.4.52 · port 80
CVE-2026-34032 MEDIUM 5.3 http_server 2.4.52 · port 80
CVE-2026-33006 MEDIUM 4.8 http_server 2.4.52 · port 80
Fixed by the distribution (14)

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 3 MEDIUM 5 LOW 4

CVESoftware
CVE-2023-28531 CRITICAL 9.8 openssh 8.9p1 · port 22
CVE-2023-38408 CRITICAL 9.8 openssh 8.9p1 · port 22
CVE-2024-6387 HIGH 8.1 openssh 8.9p1 · port 22
CVE-2026-35385 HIGH 8.1 openssh 8.9p1 · port 22
CVE-2026-35414 HIGH 8.1 openssh 8.9p1 · port 22
CVE-2025-26465 MEDIUM 6.8 openssh 8.9p1 · port 22
CVE-2023-51385 MEDIUM 6.5 openssh 8.9p1 · port 22
CVE-2026-35387 MEDIUM 6.5 openssh 8.9p1 · port 22
CVE-2023-48795 MEDIUM 5.9 openssh 8.9p1 · port 22
CVE-2023-51384 MEDIUM 5.5 openssh 8.9p1 · port 22
CVE-2025-32728 LOW 3.8 openssh 8.9p1 · port 22
CVE-2025-61984 LOW 3.6 openssh 8.9p1 · port 22
CVE-2025-61985 LOW 3.6 openssh 8.9p1 · port 22
CVE-2026-35388 LOW 2.5 openssh 8.9p1 · port 22
Only affects another platform (3)

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 1

CVESoftware
CVE-2024-40898 HIGH 7.5 http_server 2.4.52 · port 80
CVE-2024-43394 HIGH 7.5 http_server 2.4.52 · port 80
CVE-2022-28330 MEDIUM 5.3 http_server 2.4.52 · 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.

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