Critical Vulnerability Alert

Important information regarding widely reported security incident

We are aware of a critical zero-day vulnerability affecting all Windows operating systems. Our information suggests this impacts all versions of Windows

This vulnerability can allow a remote attacker to execute malicious code, and may allow them to take control of your systems. You may have seen today’s news regarding the cyber-attack on NHS England, which was delivered by exploiting this vulnerability.

Microsoft have released a patch which you should install immediately. In order to work out which patch to install for your specific environment, please refer to this Microsoft Security Bulletin.

If you experience any difficulties installing the patch or would like more information, please contact us on 0345 094 0945 where a dedicated team will be on hand to help. We have also activated a dedicated email address for this incident –

Please note: new update available here

Jisc | Data Matters

26 January 2021

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