CVE-2026-88198
HIGHCVSS 8.8/10EPSS 0.71%
Last modified
CVE-2026-88198 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Missing authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.. EPSS estimates a 0.71% chance of exploitation in the next 30 days.
Description
Missing authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Sharepoint Server | < 16.0.20326.20190 |
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88198Patch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-88198?
Missing authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
How severe is CVE-2026-88198?
CVE-2026-88198 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.71% probability of exploitation in the next 30 days.
How do I fix CVE-2026-88198?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- Uncovering a hidden BOLA in Appsmith's snapshot logicStrix autonomously discovered a BOLA/IDOR vulnerability in Appsmith's snapshot deletion path.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-88192Out-of-bounds read in Microsoft Office Excel allows an unaut…6.5
- CVE-2026-88193Heap-based buffer overflow in Microsoft Scripting Engine all…7.8
- CVE-2026-88194Out-of-bounds read in Windows DWM Core Library allows an aut…7.8
- CVE-2026-88195Buffer over-read in Microsoft Office Excel allows an unautho…6.5
- CVE-2026-88196Heap-based buffer overflow in Microsoft Office allows an una…8.8
- CVE-2026-88197Heap-based buffer overflow in Microsoft Office allows an una…8.8
- CVE-2026-88200Privilege context switching error in Microsoft Office ShareP…8.8
- CVE-2026-88201Buffer over-read in Microsoft Office Excel allows an unautho…6.5
- CVE-2026-88202Heap-based buffer overflow in Microsoft Office Word allows a…8.8
- CVE-2026-88203Untrusted pointer dereference in Microsoft Office PowerPoint…6.5
- CVE-2026-88204Improper neutralization of input during web page generation …7.3
- CVE-2026-88206Server-side request forgery (ssrf) in Microsoft Office Share…7.5
Are you affected by CVE-2026-88198?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST