CVE Feed

    Dashboard / CVE / CVE-2021-24099

    CVE-2021-24099

    Skype for Business and Lync Denial of Service Vulnerability

    Published:Feb 25, 2021
    Last Modified:Nov 21, 2024
    EPS:Feb 25, 2021
    EPSS Score:0.03565
    CVSS Score:6.5

    Affected Products

    Vendor
    Microsoft
    Product
    Lync Server
    Vendor
    Microsoft
    Product
    Skype For Business Server

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2022-33633 (CVSS 7.2) — Skype for Business and Lync Remote Code Execution Vulnerability…
    CVE-2022-26911 (CVSS 6.5) — Skype for Business Information Disclosure Vulnerability…
    CVE-2021-26422 (CVSS 7.2) — Skype for Business and Lync Remote Code Execution Vulnerability…
    CVE-2021-26421 (CVSS 6.5) — Skype for Business and Lync Spoofing Vulnerability…
    CVE-2021-24073 (CVSS 6.5) — Skype for Business and Lync Spoofing Vulnerability…
    CVE-2020-1025 (CVSS 9.8) — An elevation of privilege vulnerability exists when Microsoft SharePoint Server and Skype for Business Server …
    CVE-2019-1029 (CVSS 5.9) — A denial of service vulnerability exists in Skype for Business. An attacker who successfully exploited the vul…
    CVE-2019-0798 (CVSS 6.1) — A spoofing vulnerability exists when a Lync Server or Skype for Business Server does not properly sanitize a s…
    CVE-2015-2532 (CVSS 4.3) — Cross-site scripting (XSS) vulnerability in Microsoft Lync Server 2013 allows remote attackers to inject arbit…
    CVE-2015-2536 (CVSS 4.3) — Cross-site scripting (XSS) vulnerability in Microsoft Lync Server 2013 and Skype for Business Server 2015 allo…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High