CVE-2018-8581 Microsoft Exchange Server Privilege Escalation
An attacker can elevate privileges on Microsoft Exchange Server, potentially gaining unauthorized administrative control over the email system.
- Exploited in the wild
- Since 3 Mar 2022
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-8581?
CVE-2018-8581 is a high-severity vulnerability in Microsoft Exchange Server, published on 14 Nov 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An elevation of privilege vulnerability exists in Microsoft Exchange Server, aka "Microsoft Exchange Server Elevation of Privilege Vulnerability." This affects Microsoft Exchange Server.
Which versions are affected by CVE-2018-8581?
It affects 1 product.
Products include Microsoft Exchange Server.
How do I fix CVE-2018-8581?
No fix has been published for CVE-2018-8581 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 17 Mar 2022.
Is CVE-2018-8581 being exploited?
Yes. Attackers have exploited CVE-2018-8581 in the wild since at least 3 Mar 2022, including in ransomware campaigns.
Public exploit code: 3 proofs of concept on GitHub.
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-h9jh-6fmr-vvc6.