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Netherlands National Cyber Security Centrum

The Netherlands' national cyber security agency, which monitors threats, coordinates incident response, and issues advisories on vulnerabilities.

Known aliases

  • Dutch National Cyber Security Center
  • Dutch National Cyber Security Centre
  • Dutch officials
  • Nationaal Cyber Security Centrum
  • National Cyber Security Centre Netherlands
  • National Cyber Security Centre (Netherlands)
  • National Cyber Security Centre of the Netherlands
  • NCSC Netherlands
  • NCSC-NL
  • Netherlands National Cyber Security Centre

Current stories

securityOne report1 publisher

Modat and NCSC-NL find 8,547 wind and solar control systems reachable from the internet

Modat and the Dutch cyber agency NCSC-NL found 8,547 internet-facing wind and solar control systems in 35 countries that were never meant to be online. One turbine page offers Start, Stop and Reset to anyone with a browser.

Reality

Evidence55
Adoption
Not scored
Hype gap+10
Incentives40
Confidence55
securityConfirmed21 publishers

NetScaler attackers tunnel into internal networks with a new Python proxy

Mandiant and Google traced a September 2026 campaign exploiting NetScaler bug CVE-2026-88772, CVSS 9.5, to root on appliances with no login. From there the intruders drop web shells and a Python tunneler that reaches into victims' internal networks to steal credentials.

Perspective Coverage

21 publishers
Builder
Builder 30%
Operator
Operator 62%
Investor
Investor 8%

Reality

Evidence88
Adoption82
Hype gap−8
Incentives58
Confidence85
buildConfirmed3 publishers

Default NetScaler Gateway configurations meet the conditions for both exploited pre-auth RCE bugs

Citrix confirmed attackers are exploiting two CVSS 9.5 pre-auth RCE flaws in NetScaler ADC and Gateway, one of them present in default configurations. Self-managed appliances need the fixed build, installed after evidence is saved, since an upgrade can erase signs of intrusion.

Publishers:dev.to thestack.technology watchtowr.com

Perspective Coverage

3 publishers
Builder
Builder 22%
Operator
Operator 65%
Investor
Investor 13%

Reality

Evidence76
Adoption68
Hype gap+5
Incentives35
Confidence74
buildOne report1 publisher

DIVD says an AI agent chained two Zammad zero-days to root on its helpdesk host

DIVD says an attacker chained two unpublished Zammad bugs from an unauthenticated web session to root on its helpdesk host. Its claim that an autonomous AI agent did it is still a first-party assessment with no independent confirmation yet.

Publishers:dev.to

Reality

Evidence55
Adoption35
Hype gap+30
Incentives55
Confidence55
buildOne report1 publisher

Patching NetScaler to 14.1-73.37 leaves planted webshells and persistence in place

Attackers using two NetScaler zero-days since early September left webshells that patching to 14.1-73.37 or 13.1-64.23 does not remove. Operators have to search every appliance for those traces, patched or not, and move OT remote access onto a jump host of its own.

Publishers:dev.to

Reality

Evidence55
Adoption
Not scored
Hype gap+10
Incentives30
Confidence60
securityOne report1 publisher

Pre-auth NetScaler exploit plants a superuser account and hidden web shells

LevelBlue says attackers are exploiting NetScaler flaw CVE-2026-88771, rated 9.5, to create a hidden superuser account and plant web shells. The patch closes the injection but removes neither, so already-exposed appliances need a compromise check.

Reality

Evidence62
Adoption
Not scored
Hype gap+10
Incentives30
Confidence60
productConfirmed2 publishers

CISA wants NetScaler owners to check for intruders before installing Citrix's zero-day fixes

Citrix has fixed two NetScaler ADC and Gateway flaws, each rated 9.5 out of 10, that attackers were exploiting before any patch existed. CISA wants owners to look for signs of compromise first because the update can erase the evidence, so the upgrade comes second.

Reality

Evidence72
Adoption
Not scored
Hype gap+5
Incentives
Not scored
Confidence70
securityConfirmed3 publishers

Attackers are exploiting two unpatched NetScaler RCE flaws, watchTowr says

watchTowr says attackers exploited two remote code execution flaws in Citrix NetScaler ADC and Gateway before any fix existed. The August patch for CVE-2026-19490 fixes a different bug, so every operator now has to decide whether to keep the box online and whether to assume it is breached.

Perspective Coverage

3 publishers
Builder
Builder 15%
Operator
Operator 73%
Investor
Investor 12%

Reality

Evidence55
Adoption
Not scored
Hype gap+10
Incentives35
Confidence60
buildOne report1 publisher

Adobe Connect's code-execution flaw sits behind a login that students and contractors already hold

Adobe's Connect 12.12 fixes CVE-2026-75682, a 9.9 SQL injection that reaches code execution from any low-privileged account. Connect deployments typically hand those accounts to students, contractors and partners, so the login barrier stops few attackers.

Publishers:dev.to

Reality

Evidence45
Adoption
Not scored
Hype gap+15
Incentives
Not scored
Confidence50
buildOne report1 publisher

One low-privileged login turns Adobe Connect's 9.9 SQL injection into code execution

Adobe's September Connect patch fixes a CVSS 9.9 SQL injection that lets a low-privileged user run arbitrary code. Connect gives accounts to outside students and partners, so that bar is low enough to justify a separate 12.12 window even with no exploitation reported.

Publishers:dev.to

Reality

Evidence55
Adoption40
Hype gap+10
Incentives
Not scored
Confidence50
productConfirmed5 publishers

Apple's quiet Screen Sharing fix is now a same-day job: CVE-2026-65400 is under active abuse

Dutch officials report root access and Monero miners on Macs with port 5900 open to the internet. Sonoma, Sequoia and Tahoe all need the update Apple shipped as an important security fix.

Perspective Coverage

5 publishers
Builder
Builder 22%
Operator
Operator 70%
Investor
Investor 8%

Reality

Evidence70
Adoption
Not scored
Hype gap+10
Incentives
Not scored
Confidence68
securityConfirmed6 publishers

macOS Screen Sharing bug exploited in the wild: if port 5900 was open, assume root was taken

The Dutch NCSC says CVE-2026-65400 was abused within two weeks of Apple's fix, with root access and Monero miners in every reported case. Patching closes the door; it does not evict anyone.

Perspective Coverage

6 publishers
Builder
Builder 22%
Operator
Operator 72%
Investor
Investor 6%

Reality

Evidence60
Adoption
Not scored
Hype gap+20
Incentives40
Confidence62
securityConfirmed6 publishers

Check Point patches a Security Management zero-day it saw exploited on July 23

The advisory confirming attacks on a Security Gateway VPN flaw three days after its September 9 fix also carries the first patch for a management path traversal that was used in targeted attacks in late July.

Perspective Coverage

6 publishers
Builder
Builder 21%
Operator
Operator 70%
Investor
Investor 9%

Reality

Evidence72
Adoption
Not scored
Hype gap+5
Incentives60
Confidence70
buildOne report1 publisher

Check Point ships this week's VPN fix as a live patch for three versions and an upgrade for the rest

Two unauthenticated Check Point RCEs, a CVSS 10.0 GitLab path traversal and an already-exploited N-able flaw all came due on September 11. How fast each one closes depends on the release you happen to be running.

Publishers:dev.to

Reality

Evidence35
Adoption40
Hype gap+30
Incentives30
Confidence40
securityOne report1 publisher

CISA tells OT owners to classify every asset by function and criticality

The new Foundations for OT Cybersecurity guidance treats an asset inventory plus a taxonomy as the precondition for everything else in a defensible architecture. It sets no deadline and names no auditor.

Publishers:cisa.gov

Reality

Evidence72
Adoption
Not scored
Hype gap+10
Incentives45
Confidence70
securityOne report1 publisher

Microsoft shipped nine cloud fixes that cost its customers nothing to deploy

The nine flaws Microsoft fixed in Entra ID, Cosmos DB and six other services never reached a patch queue. The week's real remediation cost sat instead with 21,000 exposed Exchange servers and one Minnesota county.

Publishers:securityweek.com

Reality

Evidence45
Adoption55
Hype gap−10
Incentives60
Confidence50
securityConfirmed3 publishers

Public exploit code for CVE-2026-62911 is outpacing patching on 21,899 exposed Exchange servers

Microsoft patched the Exchange authentication bypass on August 11. Shadowserver's September 1 scan still counts 21,899 internet-facing servers unpatched, and NCSC-NL says working exploit code for full mailbox takeover is circulating.

Perspective Coverage

3 publishers
Builder
Builder 20%
Operator
Operator 68%
Investor
Investor 12%

Reality

Evidence72
Adoption30
Hype gap+18
Incentives70
Confidence68
securityOne report1 publisher

Akira advisory update: $244m taken, one SonicWall CVE, three controls to audit now

Nine agencies across four countries refreshed the #StopRansomware Akira advisory on Nov. 13 with indicators current to November 2025 and a three-item action list.

Publishers:cisa.gov

Reality

Evidence79
Adoption66
Hype gap+4
Incentives24
Confidence71
buildOne report1 publisher

Unauthenticated root on macOS Screen Sharing: CVE-2026-65400 is already dropping miners

An authentication state flaw lets anyone who reaches TCP/5900 skip credentials entirely. Multiple cases reported to NCSC-NL ended in root and a Monero miner.

Publishers:dev.to

Reality

Evidence34
Adoption31
Hype gap+18
Incentives24
Confidence41