CVE-2026-62910 Microsoft Exchange Server Elevation of Privilege Vulnerability
An authorized attacker can elevate privileges on Microsoft Exchange Server via resource injection, requiring immediate patching.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-62910?
CVE-2026-62910 is a high-severity vulnerability in Microsoft Exchange Server, published on 11 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Improper control of resource identifiers ('resource injection') in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.
Weakness: CWE-99
Which versions are affected by CVE-2026-62910?
It affects 2 products.
Products include Microsoft Exchange Server, Microsoft Exchange Server Subscription Edition.
How do I fix CVE-2026-62910?
No fix has been published for CVE-2026-62910 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-62910 being exploited?
There is no known exploitation of CVE-2026-62910 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Exchange Server
- CVE-2024-21410 Microsoft Exchange Server Privilege Escalation
- CVE-2021-34473 Microsoft Exchange Server Remote Code Execution
- CVE-2021-26855 Microsoft Exchange Server Remote Code Execution
- CVE-2021-34523 Microsoft Exchange Server Privilege Escalation
- CVE-2023-21529 Microsoft Exchange Server Deserialization of Untrusted Data
Sources
Also known as GHSA-qf6w-r299-vghv.