Microsoft recently disclosed a critical zero-day vulnerability (CVE-2025-53770) impacting on-premises SharePoint Server deployments. This remote code execution (RCE) flaw has already been exploited in the wild, breaching over 75 enterprise environments globally.
According to Microsoft:
“These vulnerabilities apply to on-premises SharePoint Servers only. SharePoint Online in Microsoft 365 is not impacted.”
This has been corroborated by The Hacker News, which reported:
“Microsoft said it’s aware of active attacks targeting on-premises SharePoint Server customers, but emphasized that SharePoint Online in Microsoft 365 is not affected.”
This distinction—between on-premises and cloud-hosted SharePoint—matters. A lot.
Is AutoRABIT Affected?
No.
AutoRABIT is unaffected by CVE-2025-53770.
We do not operate on-premises SharePoint servers. Our infrastructure runs exclusively on SaaS-based Microsoft SharePoint Online (Office 365)—which, as Microsoft confirms, is not vulnerable to this exploit.
Our internal review revalidated this as soon as the vulnerability was disclosed.
What We’re Doing: Our Defense Strategy
Even though AutoRABIT is not directly impacted, we take zero-day vulnerabilities seriously. Our security posture is built not just on reacting to threats, but staying ahead of them.
Here’s what we’ve done:
- Security Hardening Continues: We maintain rigorous access controls and Microsoft 365 security best practices to ensure resilience against any future risks.
- Verified Our Stack: Confirmed that our organization exclusively uses SharePoint Online.
- Reviewed Microsoft Guidance: Examined Microsoft’s CVE-2025-53770 advisories to ensure full awareness of scope and implications.
- Validated with Stakeholders: Engaged our IT and collaboration teams to double-confirm configurations.
- Ongoing Threat Monitoring: Actively tracking updates from Microsoft and trusted security channels for any changes in threat posture.
A Culture of Vigilance
At AutoRABIT, we believe robust security isn’t just about patching flaws—it’s about anticipating them. We review every threat through the lens of our customers’ trust even when we’re not directly impacted,
This is part of our broader commitment to continuous security maturity: a mindset where proactive defense, clarity, and rapid response define how we operate.
Additional Reading