Check-Host.cc

Network Port SMTPS

Port 465

Well-known service: SMTPS

Total Hosts
1,393,442
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 4,283
nginx/1.22.1 2,882
nginx/1.14.2 1,151
nginx 585
nginx/1.18.0 187
squid/3.5.20 109
nginx/1.18.0 (Ubuntu) 55
Apache 55
Microsoft-IIS/10.0 40
openresty 35
ESA 32
squid/3.1.23 29

Top Countries

Country IPs
US 122,379
DE 18,253
FR 18,244
CN 17,229
PL 14,615
JP 14,501
SG 9,941
RU 7,584
BR 6,920
IR 6,312
CA 6,175
GB 6,103

Top ASNs

ASN Name IPs
AS396982 Google Cloud 41,339
AS37963 Alibaba (China) 12,368
AS12824 home.pl S.A. 10,087
AS16276 OVHcloud 9,892
AS19551 Thales/Imperva 9,254
AS26496 GoDaddy 8,239
AS24940 Hetzner Online 7,847
AS46606 Endurance International Group, Inc 6,999
AS197207 Mobile Communication Company of Iran 5,536
AS2514 NTT PC Communications (InfoSphere) 4,626
AS13335 Cloudflare 4,485
AS1715 4,465

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...