CVE-2026-70326: Microsoft SharePoint Server Elevation of Privilege Vulnerability
Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
CSIRTS triage
- What
- Server-side request forgery in Microsoft SharePoint Server allows authorized attackers to elevate privileges over a network.
- Who is affected
- Authorized users with access to SharePoint Server deployments.
- Urgency
- High severity (CVSS 8.8); requires prior authentication but privilege escalation over network is critical.
- Action
- Apply the latest security patch for SharePoint Server from Microsoft Update.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70326
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-703260.58% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 45% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-70326 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
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