MicrosoftCVE-2026-65801
Microsoft Exchange Online: server-side request forgery
Critical10.0CVE-2026-65801 · Published Aug 20, 2026 · updated Aug 24, 2026
Server-side request forgery (ssrf) in Microsoft Exchange Online allows an unauthorized attacker to elevate privileges over a network.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| Microsoft Exchange Online Product | all versions | No fix yet |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-918
More Microsoft advisories
All Microsoft| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Aug 20 | Microsoft Copilot in Azure: server-side request forgery | High7.7 | No fix yet |
| Aug 20 | Microsoft Office Word: improper input validation | Medium6.5 | 16.112.26081010+1 more |
| Aug 20 | Microsoft Azure Stack HCI: unauthorized attacker could disclose information over | High8.6 | No fix yet |
| Aug 20 | Microsoft Azure Virtual Machines: server-side request forgery | High8.5 | No fix yet |
| Aug 20 | Microsoft Azure ARC: improper authorization | Critical10.0 | No fix yet |
| Aug 20 | Microsoft Partner Center: insecure direct object reference | High8.6 | No fix yet |