logo

CISA Alerts on Exploited Microsoft Exchange and Windows CLFS Security Flaws

ID: 65f74b74-14a1-5702-ac3a-9ebc3d0f5184

STIX ID: report--65f74b74-14a1-5702-ac3a-9ebc3d0f5184

Feed Name: GBHackers

Threat Score
80/100

Date Published: 2026-04-14

Date Updated: 2026-07-21

Author: Divya

...
...

CISA issued a high-priority advisory for two actively exploited Microsoft vulnerabilities—CVE-2023-36424 (Windows CLFS local privilege escalation) and CVE-2023-21529 (Exchange Server deserialization leading to remote code execution)—added to the Known Exploited Vulnerabilities catalog and subject to a federal mitigation deadline; organizations are strongly urged to apply Microsoft patches immediately to prevent severe network compromise.

Your team is not currently subscribed to this feed. You must subscribe to it in order to see this post.