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Exchange Server CVE-2023-21761

HIGH
Server-Side Request Forgery (SSRF) (CWE-918)
2023-01-10 secure@microsoft.com
SSRF Information Disclosure Microsoft Exchange Server
7.5
CVSS 3.1 · Vendor: microsoft
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Severity by source

Vendor (microsoft) PRIMARY
7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Primary rating from Vendor (microsoft) · only source for this CVE.

CVSS VectorVendor: microsoft

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

1
CVE Published
Jan 10, 2023 - 22:15 cve.org
HIGH 7.5

DescriptionCVE.org

Microsoft Exchange Server Information Disclosure Vulnerability

AnalysisAI

Microsoft Exchange Server Information Disclosure Vulnerability. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Server-Side Request Forgery (SSRF) (CWE-918), which allows attackers to make the server perform requests to unintended internal or external resources. Microsoft Exchange Server Information Disclosure Vulnerability Affected products include: Microsoft Exchange Server.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate and allowlist destination URLs, block requests to internal networks, use network segmentation.

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CVE-2023-21761 vulnerability details – vuln.today
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