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CVE-2021-27076 high CVSS 8.8

Microsoft SharePoint Server Remote Code Execution Vulnerability

Summary

Microsoft SharePoint Server Remote Code Execution Vulnerability

AI summary snake-internal / snake-template-v1

A weakness called CVE-2021-27076 was discovered in Microsoft Sharepoint Server. Severity is High (CVSS 8.8/10). If exploited, attackers can leak data or disrupt key functionality. What you should do: update the affected software to the latest version. If unsure, ask your IT team or search the vendor's site for "Microsoft CVE-2021-27076".
CVE-2021-27076 (Microsoft Sharepoint Server). Severity: High / CVSSv3 8.8. Response plan: 1. Check the vendor advisory for affected versions and the patched release. 2. If a vulnerable version is running in production, schedule maintenance (urgency from KEV/CVSS). 3. If no patch yet, mitigate via WAF rule, disabling the affected feature, etc. 4. Monitor logs / SIEM for known IOC and PoC signatures of this CVE. PoCs and fix commits: see the 'References' section, MITRE, and NVD.
❓ What is the problem
A weakness (CVE-2021-27076) in Microsoft Sharepoint Server. A serious software flaw has been identified.
📍 Affected scope
Target versions of Microsoft Sharepoint Server (see vendor advisory). If running in production, identify exposure immediately.
🔥 Severity
Severity: High (CVSS 8.8/10). If exploited, attackers can leak data or disrupt key functionality.
🔧 How to fix
Update to the patched release as listed in the vendor advisory.
🛡️ Workaround
If a patch is not yet available, consider disabling the affected feature, applying WAF rules, blocking via network ACLs, or isolating the vulnerable version.
🔍 Detection
Check version information, scan dependencies via SBOM, and monitor SIEM for IOC and PoC signatures related to this CVE.

References

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