CVE-2023-41763 (GCVE-0-2023-41763)

Vulnerability from cvelistv5 – Published: 2023-10-10 17:07 – Updated: 2025-10-21 23:05
VLAI CISA KEV
Title
Skype for Business Elevation of Privilege Vulnerability
Summary
Skype for Business Elevation of Privilege Vulnerability
Severity
5.3 (Medium)
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
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Date Public
2023-10-10 07:00
CISA KEV
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: de69649c-6854-43a2-8738-5fabb8e829ea

Vulnerability ID: CVE-2023-41763

Status: Confirmed

Status Updated: 2023-10-10 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2023-10-10
Asserted: 2023-10-10
Scope
Notes: KEV entry: Microsoft Skype for Business Privilege Escalation Vulnerability | Affected: Microsoft / Skype for Business | Description: Microsoft Skype for Business contains an unspecified vulnerability that allows for privilege escalation. | Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. | Due date: 2023-10-31 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2023-41763; https://nvd.nist.gov/vuln/detail/CVE-2023-41763
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-918
Feed CISA Known Exploited Vulnerabilities Catalog
Product Skype for Business
Due Date 2023-10-31
Date Added 2023-10-10
Vendorproject Microsoft
Vulnerabilityname Microsoft Skype for Business Privilege Escalation Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-02-02 12:26 UTC | Updated: 2026-02-06 07:17 UTC
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.