CVE-2023-41763CISA KEV

Microsoft Skype for Business Privilege Escalation Vulnerability

Severity unknownCVSS unknownCheck the vendor advisory for fixed versions

CISA lists this Microsoft vulnerability as known exploited. Its MSRC release detail is outside this installation's collected history.

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CISA catalog record

Microsoft Skype for Business contains an unspecified vulnerability that allows for privilege escalation.

Product: Skype for Business
Added to KEV: 10 Oct 2023
Federal remediation due: 31 Oct 2023
Known ransomware use: Not reported
Public detection template: PublicNuclei template · template membership does not establish exploit availability or applicability to your systems.

What changed

Detection template: Nuclei template listed
29 Oct 2026
Detection template: Nuclei template listed
28 Oct 2026

Page history

Changes are dated when recorded; day views use the last saved version from that UTC day, and citations stay fixed.

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Field-level log (12)

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13 Nov 2026 · 12:10:20 UTC Source coverage: public-exploit-codeIncomplete → Current
13 Nov 2026 · 11:07:20 UTC Source coverage: public-exploit-codeCurrent → Incomplete
6 Nov 2026 · 17:32:22 UTC Source coverage: public-exploit-codeIncomplete → Current
6 Nov 2026 · 16:31:02 UTC Source coverage: public-exploit-codeCurrent → Incomplete
2 Nov 2026 · 17:30:39 UTC Source coverage: public-exploit-codeIncomplete → Current
2 Nov 2026 · 16:27:39 UTC Source coverage: public-exploit-codeCurrent → Incomplete
29 Oct 2026 · 20:19:26 UTC Public detection templateNuclei template listed
28 Oct 2026 · 05:10:29 UTC Public exploit codeNuclei template listed
28 Oct 2026 · 05:10:29 UTC Source coverage: public-exploit-codeCurrent
28 Oct 2026 · 05:10:29 UTC Link: Nuclei templatehttps://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-41763.yaml
23 Oct 2026 · 09:33:49 UTC Source coverage: cisa-kevIncomplete → Current
23 Oct 2026 · 08:31:50 UTC Source coverage: cisa-kevCurrent → Incomplete

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Exploitation and risk

Source status

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CVE-2023-41763

Listed in CISA KEV · added 10 Oct 2023 · Microsoft · Skype for Business

Microsoft Skype for Business contains an unspecified vulnerability that allows for privilege escalation.

CISA source

No EPSS score is available here for this CVE.

Saved 23 Oct 2026 16:01:26 UTC · View this risk record (JSON)

cve-program · CVE-2023-41763

Published

Skype for Business Elevation of Privilege Vulnerability

Source published: 10 Oct 2023 17:07:24 UTC
Source modified: 21 Oct 2025 23:05:34 UTC
Saved here: 23 Oct 2026 15:48:27 UTC
Source terms: CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

Source: cve-program · CVE Program Terms of Use. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS 3.1 · 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C