SharePoint Security Shocker: Critical Flaws Put Government and Healthcare at Risk
Microsoft has issued an urgent warning: SharePoint vulnerabilities are being actively exploited, putting critical sectors like government and healthcare at risk. Attackers are bypassing identity controls, exfiltrating sensitive data, and deploying backdoors. SharePoint customers should assume compromise and take immediate action. Disconnect from the internet and rotate cryptographic material. Apply patches and investigate thoroughly.
Hot Take:
It seems SharePoint has become the VIP room for cyber attackers, and the bouncers (aka security patches) are still checking IDs at the door. While Microsoft hustles to patch things up, governments and healthcare sectors are stuck playing a high-stakes game of “Guess Who” with their own cyber security. Spoiler alert: It’s not Colonel Mustard in the library, it’s hackers in the server room.
Key Points:
- Microsoft warns of active exploitation of SharePoint vulnerabilities affecting critical sectors.
- Vulnerabilities, CVE-2025-53770 and CVE-2025-53771, pose high risks, allowing unauthorized access and spoofing.
- Organizations advised to assume compromise, rotate cryptographic material, and consider disconnecting SharePoint from the internet.
- Threat actors are bypassing identity controls and establishing backdoors, making remediation challenging.
- Partial fixes are available, with more patches expected for SharePoint 2016 users.