Important CVSS 8 EPSS 0.0199 2025-11 archive

Executive Summary

Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

Overview

8
CVSS HIGH
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
Category Remote Code Execution
Released Nov 11 2025
Last Updated Nov 11 2025
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known
EPSS Score 0.0199 — 0.78058 percentile

CVSS Vector

ATTACK VECTOR
Network
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
Low
USER INTERACTION
Required
SCOPE
Unchanged
Temporal Score: 7.0

EPSS Score

0.0199
probability of exploitation in the next 30 days
0.78058 percentile - updated 2026-06-20
View on FIRST.org

Affected Products

3 affected products
Product KB Article Severity Impact Restart Required
Microsoft SharePoint Enterprise Server 2016 5002805 (Security Update) Important Remote Code Execution Maybe
Microsoft SharePoint Server 2019 5002803 (Security Update) Important Remote Code Execution Maybe
Microsoft SharePoint Server Subscription Edition 5002800 (Security Update) Important Remote Code Execution Maybe

Patches

3 patches
Article Type Restart
5002805 Security Update Maybe
5002803 Security Update Maybe
5002800 Security Update Maybe

Known Exploits

Acknowledgments

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