Microsoft Monthly Security Updates - 20260114002¶

Overview¶

Microsoft has addressed 114 vulnerabilities in its January 2026 security update release, including one actively exploited vulnerability.

What is vulnerable?¶

Known Exploitation¶

Products and Versions Affected	CVE	CVSS	Severity
Vendor noted products and versions	CVE-2026-20805	5.5	Medium

What has been observed?¶

The WASOC has not received any reports of exploitation of this vulnerability on Western Australian Government networks at the time of writing.

Recommendation¶

The WASOC recommends administrators apply the solutions as per vendor instructions to all affected devices within expected timeframes (refer Patch Management):

Microsoft: https://msrc.microsoft.com/update-guide/releaseNote/2026-Jan

Additional References¶

CISA Known Exploited Vulnerabilities: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20805