8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Microsoft has released Customer Guidance for Reported Zero-day Vulnerabilities in Microsoft Exchange Server. According to the blog post, “Microsoft is aware of limited targeted attacks using the two vulnerabilities to get into users’ systems.” The two vulnerabilities are CVE-2022-41040 and CVE-2022-41082, affecting on-premises Microsoft Exchange Server 2013, 2016, and 2019. Note: Microsoft Exchange Online is not affected.
An attacker could exploit these vulnerabilities to take control of an affected system.
CISA encourages users and administrators to review the following information from Microsoft and apply the necessary mitigations until patches are made available:
This product is provided subject to this Notification and this Privacy & Use policy.
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msrc-blog.microsoft.com/2022/09/29/customer-guidance-for-reported-zero-day-vulnerabilities-in-microsoft-exchange-server/
msrc-blog.microsoft.com/2022/09/29/customer-guidance-for-reported-zero-day-vulnerabilities-in-microsoft-exchange-server/
www.microsoft.com/security/blog/2022/09/30/analyzing-attacks-using-the-exchange-vulnerabilities-cve-2022-41040-and-cve-2022-41082/