Hackers target Microsoft SharePoint RCE chain with PoC exploit
BLUF
Active exploitation of a chained SharePoint RCE vulnerability is underway with public PoC code available.
NEWS
Threat intelligence firm Defused reports attackers are chaining two specific SharePoint vulnerabilities to achieve remote code execution. BleepingComputer confirms that proof-of-concept exploits are circulating, targeting servers that have not applied recent security patches.
Why I Care
This matters because successful exploitation grants attackers full control over affected systems, potentially leading to data theft or ransomware deployment. Any organization hosting Microsoft SharePoint on-premises without the latest updates is at immediate risk of compromise.
Next Steps
IT security teams should immediately inventory all SharePoint instances and apply the latest Microsoft security patches. Network monitoring should be enhanced to detect exploitation attempts, prioritizing systems exposed to the internet within 48 hours.
Source: BleepingComputer ·