versio.nl security report

Certificate, security headers, email authentication, DNS, registration, and exposed hosts — from public sources.

69risk

Elevated

Several issues worth triaging this week.

0Critical

3High

4Medium

4Low

2Info

Collected 20 hours ago128.0sfrom cache

Headers—

unavailable

Domain—

unavailable

Certificate Transparency56
DNS resolution30
Network ownership0
CDN / WAF detection0
Exposed ports & CVEs28
Registration
DNS posture3
Email authentication2
Certificate
Security headers
Archived URLs
Analysis13

noteFound 56 hostnames; this runtime allows 50 outbound requests per scan, so the 21 most likely to matter were resolved.
noteFound 26 addresses; enriching the first 12.
noteCertificate inspection is unavailable in this runtime.
noteNetwork ownership lookup is unavailable in this runtime; ASN and org are omitted.
noteCDN/WAF detection is unavailable in this runtime.
noteRegistration did not complete (Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits). Results below are partial.
noteSecurity headers did not complete (Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits). Results below are partial.

Shodan matched these CVEs against the service banners it saw on 185.182.58.38 (staging.versio.nl), which advertise http server 2, exim 4.99.5, exim 4.99.2. These are version-fingerprint matches, not confirmed exploits: a distribution may have back-ported the fix while leaving the banner unchanged. Severity reflects the volume of known issues associated with this host, not a CVSS score. CVE-2026-48840 CVE-2026-45185
What to do
Confirm the running versions on 185.182.58.38 and compare them against the current security release for each package before treating any single CVE as live.
CVE-2026-48840 ↗CVE-2026-45185 ↗
asset: 185.182.58.38
Shodan matched these CVEs against the service banners it saw on 109.106.178.13 (webmail.versio.nl), which advertise nginx 1.14.1. These are version-fingerprint matches, not confirmed exploits: a distribution may have back-ported the fix while leaving the banner unchanged. Severity reflects the volume of known issues associated with this host, not a CVSS score. CVE-2025-23419 CVE-2023-44487 CVE-2021-23017 CVE-2021-3618 CVE-2019-20372 CVE-2019-9516 CVE-2019-9513 CVE-2019-9511 CVE-2018-16845
What to do
Confirm the running versions on 109.106.178.13 and compare them against the current security release for each package before treating any single CVE as live.
CVE-2025-23419 ↗CVE-2023-44487 ↗CVE-2021-23017 ↗CVE-2021-3618 ↗CVE-2019-20372 ↗
asset: 109.106.178.13
Public RDP is the most common ransomware entry point.
What to do
Restrict 3389/tcp to a VPN, bastion, or allow-listed source range.
asset: 92.63.174.7:3389
185.182.58.38 (staging.versio.nl) reports http server 2, exim 4.99.5, exim 4.99.2. Publishing precise versions lets anyone match the host against a CVE feed without probing it, which is how targets get shortlisted for mass exploitation after a new advisory lands.
What to do
Suppress version tokens in server banners (for example `ServerTokens Prod` in Apache) and keep the packages current.
asset: 185.182.58.38
FTP transmits credentials in cleartext.
What to do
Restrict 21/tcp to a VPN, bastion, or allow-listed source range.
asset: 185.182.58.38:21
109.106.178.13 (webmail.versio.nl) reports nginx 1.14.1. Publishing precise versions lets anyone match the host against a CVE feed without probing it, which is how targets get shortlisted for mass exploitation after a new advisory lands.
What to do
Suppress version tokens in server banners (for example `ServerTokens Prod` in Apache) and keep the packages current.
asset: 109.106.178.13
Receivers are asked to report spoofing but not to block it. This is the right first step, and the wrong place to stop.
What to do
Once reports look clean, move to p=quarantine, then p=reject.
asset: versio.nl
Check it is not an open relay.
What to do
Restrict 25/tcp to a VPN, bastion, or allow-listed source range.
asset: 185.182.58.38:25
31.7.0.16 (versio.nl) reports varnish cache 7.1. Publishing precise versions lets anyone match the host against a CVE feed without probing it, which is how targets get shortlisted for mass exploitation after a new advisory lands.
What to do
Suppress version tokens in server banners (for example `ServerTokens Prod` in Apache) and keep the packages current.
asset: 31.7.0.16
staging.versio.nl appears in Certificate Transparency logs. Names like this usually front staging, admin, or internal tooling, which tends to be patched later and monitored less than production.
What to do
Confirm this host is meant to be public. If not, put it behind SSO or an allow-list.
asset: staging.versio.nl
versio1010-test.versio.nl appears in Certificate Transparency logs. Names like this usually front staging, admin, or internal tooling, which tends to be patched later and monitored less than production.
What to do
Confirm this host is meant to be public. If not, put it behind SSO or an allow-list.
asset: versio1010-test.versio.nl
Mail to this domain can be downgraded to plaintext by an on-path attacker, because senders have no way to know TLS is required.
What to do
Publish an MTA-STS policy (a TXT record plus a small HTTPS-hosted file).
asset: versio.nl
Any public certificate authority may issue certificates for this domain. CAA lets you name the ones allowed to.
What to do
Add a CAA record naming your CA, e.g. `0 issue "letsencrypt.org"`.
asset: versio.nl

✓Receives mail via 3 servers
fallbackmx.spamexperts.eu lastmx.spamexperts.net mx.spamexperts.com
!SPFends in ~all
v=spf1 include:spf.versio.nl include:spf.mydomainprovider.com include:sendgrid.net include:fdspfeuc.freshemail.io include:_spf.paytsoftware.com include:spf.protection.outlook.com include:spf.cm.puzzel.com ~all
!DMARCp=none
v=DMARC1; p=none; rua=mailto:abuse@versio.nl;
!MTA-STSinbound mail can be downgraded to plaintext

✓DNSSECanswers are signed and validated
–CAAany CA may issue
✓IPv6 (AAAA)
✓3 nameservers
ns1.cldin.eu ns2.cldin.eu ns3.cldin.eu

Address	Ports	CVEs	Edge	Network
185.182.58.38 staging.versio.nl +1	212580110143443587993+1	2	direct	—
109.106.179.45 mail.versio.nl +1	110143465587993995	0	direct	—
31.7.0.16 versio.nl +3	80443	0	direct	—
109.106.178.13 webmail.versio.nl +1	80443	9	direct	—
3.165.102.57 status.versio.nl +2	80443	0	direct	—
3.165.102.10 status.versio.nl +2	80443	0	direct	—
3.165.102.116 status.versio.nl +2	80443	0	direct	—
92.63.174.7 versio1010-test.versio.nl +1	3389	0	direct	—
18.192.250.188 sso.versio.nl +2	80	0	direct	—
3.165.102.126 status.versio.nl +1	80	0	direct	—
185.94.230.45 dl.versio.nl	none known	0	direct	—
31.7.0.223 acc.versio.nl	none known	0	direct	—

Archived URLs

Endpoints the Wayback Machine has kept — config files, backups, scripts. Slow to fetch, so it is here on request.

versio.nl security report

Elevated

Findings

Email authentication

DNS

Hosts

Hostnames