Scammers impersonating the NCSC
Published Sources: NCSC NZ
What is affected, what to do
Scammers impersonating the NCSC The National Cyber Security Centre (NCSC) is aware that people are receiving scam calls impersonating the NCSC. The NCSC does not generally initiate unsolicited contact via phone and recommends the calls are not answered or called back.
The available sources name no fixed version. Check the vendor guidance in the references below.
Not sure whether and how you are affected? Ask a question about this vulnerability
Metrics
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Priority
No value is available for this vulnerability.
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CVSS v3
No value is available for this vulnerability.
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EPSS score
No value is available for this vulnerability.
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- Severity
- Not rated
Priority (0–325)
The priority score is a consolidated metric that condenses several individual signals into a single, action-guiding ranking: technical severity (CVSS), exploitation likelihood (EPSS), known-exploited status (KEV) and the context of the affected asset. The aim is to answer the only truly important question in vulnerability management: what first?
Read in glossary- 21.93 Methodology
Exploit maturity
An exploit is code or a technique that specifically uses a concrete vulnerability to force unintended behaviour — such as executing code or escalating privileges. It is the tool that turns a theoretical flaw into a practical attack.
Read in glossary- no public PoC known
KEV status
The KEV catalogue is a list maintained by the US authority CISA of vulnerabilities for which active exploitation in the wild has been confirmed. It answers not the question „how severe?“ but „is it already being attacked?“ — thereby sharply prioritising patching.
Read in glossary- —
- Published
Classification under NIS2 and CRA
Rule-based classification from exploitation status and severity. It does not replace a case-by-case assessment.
NIS2
NIS2 is EU Directive (EU) 2022/2555 to raise the level of cybersecurity across the Union. It substantially broadens obligations compared with the first NIS directive: more sectors, mandatory risk management, staged reporting duties and personal accountability of senior management.
Read in glossary- Handle the vulnerability in regular vulnerability handling under Art. 21(2)(e) NIS2.
CRA
The CRA is EU Regulation (EU) 2024/2847 setting horizontal cybersecurity requirements for „products with digital elements“ — from industrial controllers and software to connected consumer devices. For the first time manufacturers must ensure security across the entire product lifecycle, handle vulnerabilities and provide security updates.
Read in glossary- From 11.12.2027, Annex I Part II CRA requires manufacturers of affected products with digital elements to handle vulnerabilities without delay and provide security updates.
ISO/IEC 27001
ISO/IEC 27001 is the internationally leading standard for an information security management system (ISMS). It describes a risk-based, process-oriented framework to systematically plan, implement, review and improve information security.
Read in glossary- Control A.8.8, management of technical vulnerabilities: assess relevance to your systems, plan remediation and keep evidence.
Description
Scammers impersonating the NCSC The National Cyber Security Centre (NCSC) is aware that people are receiving scam calls impersonating the NCSC. The NCSC does not generally initiate unsolicited contact via phone and recommends the calls are not answered or called back. If you do pick up a call do not follow the caller's instructions. We are investigating the issue and will provide further information when we can. What's happening What this means People are receiving scam calls from someone claiming to be from the NCSC. What to look for How to tell if you're at risk If you have received an unexpected call from someone claiming to be from the NCSC. What to do Mitigation If you do pick up an unexpected call claiming to be from the NCSC, please end the call and take the following steps: Submit a report through the NCSC’s official reporting portal. Once you have submitted the report, you will get a reference number for the ticket. If you receive further calls from the NCSC and the call is legitimate, we will be able to provide you the reference number. More information If you require more information or further support, submit a report on our website. Report an incident