Microsoft Patch Tuesday, October 2023: What organisations need to know.

11.10.23

Threat Intelligence Alerts

Microsoft released its October 2023 Patch Tuesday updates on October 10, 2023, fixing 103 vulnerabilities, including three zero-days actively exploited. Organisations should prioritise installing these updates as soon as possible to reduce their attack risk.

The three zero-day vulnerabilities fixed in the October 2023 Patch Tuesday updates are:

All three critical vulnerabilities could allow attackers to execute arbitrary code on a vulnerable system, leading to a complete compromise. Businesses should install the updates for these vulnerabilities as soon as possible.

In addition to the three zero-day vulnerabilities, the October 2023 Patch Tuesday updates also fix several other notable vulnerabilities, including:

Organisations should review the complete list of vulnerabilities fixed in the October 2023 Patch Tuesday updates and install all the updates that apply to their systems.

Businesses should take the following steps to protect themselves from the vulnerabilities fixed in the October 2023 Patch Tuesday updates:

By following these steps, organisations can help to reduce the risk of cyber attacks and keep their systems secure.