What is the CVSS score of CVE-2023-41763?

CVE-2023-41763 has a CVSS 3.1 base score of 5.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N. EPSS exploitation probability: 90.4%.

Is there a public PoC exploit available for CVE-2023-41763?

Yes, a public proof-of-concept exploit is available for CVE-2023-41763. Prioritise patching immediately. EPSS: 90.4%.

Is there a patch available for CVE-2023-41763?

Yes, a patch is available for CVE-2023-41763. Update the affected software to the latest version immediately.

Skype For Business Server CVE-2023-41763

MEDIUM

Server-Side Request Forgery (SSRF) (CWE-918)

2023-10-10 secure@microsoft.com

SSRF Skype For Business Server

5.3

CVSS 3.1 · Vendor: microsoft

Severity by source

Vendor (microsoft) PRIMARY

5.3 MEDIUM

AV:N/AC:L/PR:N/UI:N/S:U/C:L/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:L/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Lifecycle Timeline

Added to CISA KEV

Jul 14, 2026 - 04:22 CISA

CVE Published

Oct 10, 2023 - 18:15 cve.org

MEDIUM 5.3

DescriptionCVE.org

Skype for Business Elevation of Privilege Vulnerability

AnalysisAI

Skype for Business Elevation of Privilege Vulnerability. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Server-Side Request Forgery (SSRF) vulnerability could allow attackers to make the server perform requests to unintended internal or external resources.

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. Affected products include: Microsoft Skype For Business Server.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Validate and allowlist destination URLs, block requests to internal networks, use network segmentation.