CVE-2026-69465
Microsoft Office SharePoint Remote Code Execution Vulnerability
No known exploitation. EPSS puts it in the 54th percentile. A vendor fix is available.
What to do
The vendor has published a fix. Version details are below where the sources state them.
Steps
Written by AI from the record- Check which SharePoint products/editions you run (SharePoint Server or Microsoft SharePoint Server Subscription Edition) and confirm your current installed build/version.
- Compare your current build to the fixed version: update to 16.0.20326.20074 for SharePoint Server and for Microsoft SharePoint Server Subscription Edition.
- Apply the vendor update from Microsoft’s security update guide for CVE-2026-69465, then verify the SharePoint build shows the fixed version.
- If you can’t update immediately, restrict network access to SharePoint (allow only approved internal/admin traffic) until the update is applied.
What it is
From the CVE record
Missing authorization in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
In plain language
Written by AI from the recordThis is a serious remote code execution flaw in Microsoft SharePoint Server (including Subscription Edition). If your business runs a SharePoint server, you should update right away, because it could let an attacker run code over the network.
Microsoft SharePoint Server Remote Code Execution is caused by a missing authorization check that lets an attacker execute code over the network; affected builds are fixed in 16.0.20326.20074 for both SharePoint Server and Microsoft SharePoint Server Subscription Edition.
If you're affected
- Full server takeover
- Malicious code execution
- Data theft from SharePoint
- Service disruption
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
0.8% chance of exploitation activity in the next 30 days, which ranks it in the 54th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
8 events over 1 day, from the signal feeds we watch.
- Patch availablerecord updated, record updated, record updated
- Publishedweakness classified, att&ck mapped, record updated
Affected products
Technical detail
CVSS 3.1 vector
Open in the CVSS calculatorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Scored 8.8 by NVD.
How it is reached
- Attack Vector NetworkExploitable remotely over the network without any special conditions
- Attack Complexity LowNo special conditions — the attack can be reliably reproduced
- Privileges Required LowRequires basic user-level privileges
- User Interaction NoneNo user interaction needed — fully automated exploitation
Scope
- Scope UnchangedImpact is limited to the vulnerable component itself
Impact if exploited
- Confidentiality HighTotal information disclosure — all data in the component is compromised
- Integrity HighTotal loss of integrity — attacker can modify any data in the component
- Availability HighTotal denial of service — the component is completely unavailable
Weaknesses
ATT&CK techniques
Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.
Sources
References in the record
In the news
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