Check-Host.cc

Network Port SMTPS

Port 465

Well-known service: SMTPS

Total Hosts
1,391,959
last 90 d
Countries
12
distinct
Top Software
Tengine
from banners
CVE Hits
NVD feed pending

Service Detail

Port
465
Protocol
TCP / UDP
Service
SMTPS
IANA Reserved
Common Risk

Top Software on this Port

Server / Banner Hits
Tengine 4,272
nginx/1.22.1 2,880
nginx/1.14.2 1,150
nginx 584
nginx/1.18.0 187
squid/3.5.20 108
nginx/1.18.0 (Ubuntu) 55
Apache 54
Microsoft-IIS/10.0 40
openresty 35
ESA 32
squid/3.1.23 29

Top Countries

Country IPs
US 122,295
DE 18,255
FR 18,227
CN 17,199
PL 14,602
JP 14,492
SG 9,929
RU 7,570
BR 6,915
IR 6,337
CA 6,166
GB 6,115

Top ASNs

ASN Name IPs
AS396982 Google Cloud 41,338
AS37963 Alibaba (China) 12,358
AS12824 home.pl S.A. 10,086
AS16276 OVHcloud 9,879
AS19551 Thales/Imperva 9,249
AS26496 GoDaddy 8,246
AS24940 Hetzner Online 7,848
AS46606 Endurance International Group, Inc 7,000
AS197207 Mobile Communication Company of Iran 5,561
AS2514 NTT PC Communications (InfoSphere) 4,635
AS13335 Cloudflare 4,496
AS1715 4,463

Wappalyzer Tech-Stack on Port 465

CVE Matches

Published CVEs matched by exact version to the software banner-advertised on this port. A CVE listing does not confirm any individual host is exploitable.

CVE Software CVSS Severity Summary
CVE-2016-10002 squid 3.5.20 7.5 N/A Incorrect processing of responses to If-None-Modified HTTP conditional requests in Squid HTTP Proxy 3.1.10 through 3.1.23, 3.2.0.3 through 3.5.22, and 4.0.1 thr...