CVE-2026-65813
MEDIUMCVSS 6.5/10EPSS 0.62%
Last modified
CVE-2026-65813 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.. EPSS estimates a 0.62% chance of exploitation in the next 30 days.
Description
Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 23 | >= 15.01.0.0, < 15.01.2507.072 |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 14 | >= 15.02.0.0, < 15.02.1544.044 |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 15 | >= 15.02.0.0, < 15.02.1748.049 |
| Microsoft | Microsoft Exchange Server Subscription Edition RTM | >= 15.02.0.0, < 15.02.2562.046 |
References
Timeline
- Published
- Last Modified
- Status
- Undergoing Analysis
Frequently Asked Questions
What is CVE-2026-65813?
Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.
How severe is CVE-2026-65813?
CVE-2026-65813 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.62% probability of exploitation in the next 30 days.
How do I fix CVE-2026-65813?
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.
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Are you affected by CVE-2026-65813?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST