Periodical

Microsoft SharePoint under attack via new exploit.

Bibliographic Details
Title: Microsoft SharePoint under attack via new exploit.
Authors: Jones, David (AUTHOR)
Source: Cybersecurity Dive. 7/21/2026, pN.PAG-N.PAG. 1p.
Subject Terms: *SharePoint (Computer software), *Computer security vulnerabilities, Internet security, Software upgrades
Company/Entity: Microsoft Corp. 081466849 MSFT
Abstract: The article focuses on a critical deserialization vulnerability in Microsoft SharePoint, identified as CVE-2026-50522, which is actively being exploited to enable remote code execution with a severity rating of 9.8 out of 10. Security researchers from watchTowr and Defused report that attackers are targeting on-premises SharePoint servers, stealing machine keys to maintain persistent access, and warn that patching alone is insufficient without rotating exposed credentials. Microsoft has released security updates to mitigate the flaw and recommends upgrading to the latest version, while the U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added the vulnerability to its Known Exploited Vulnerabilities catalog, mandating federal agencies to address it promptly. The article also notes recent CISA warnings about additional SharePoint vulnerabilities facing exploitation. [Extracted from the article]
Copyright of Cybersecurity Dive is the property of Industry Dive and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Business Source Index
FullText Text:
  Availability: 0
Header DbId: bsx
DbLabel: Business Source Index
An: 195618563
RelevancyScore: 1272
AccessLevel: 6
PubType: Periodical
PubTypeId: serialPeriodical
PreciseRelevancyScore: 1271.61413574219
IllustrationInfo
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  Label: Title
  Group: Ti
  Data: Microsoft SharePoint under attack via new exploit.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Jones%2C+David%22">Jones, David</searchLink> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Cybersecurity+Dive%22">Cybersecurity Dive</searchLink>. 7/21/2026, pN.PAG-N.PAG. 1p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22SharePoint+%28Computer+software%29%22">SharePoint (Computer software)</searchLink><br />*<searchLink fieldCode="DE" term="%22Computer+security+vulnerabilities%22">Computer security vulnerabilities</searchLink><br /><searchLink fieldCode="DE" term="%22Internet+security%22">Internet security</searchLink><br /><searchLink fieldCode="DE" term="%22Software+upgrades%22">Software upgrades</searchLink>
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  Label: Company/Entity
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  Data: <searchLink fieldCode="DE" term="%22Microsoft+Corp%2E%22">Microsoft Corp.</searchLink> <searchLink fieldCode="DN" term="%22081466849%22">081466849</searchLink> <searchLink fieldCode="TK" term="%22MSFT%22">MSFT</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The article focuses on a critical deserialization vulnerability in Microsoft SharePoint, identified as CVE-2026-50522, which is actively being exploited to enable remote code execution with a severity rating of 9.8 out of 10. Security researchers from watchTowr and Defused report that attackers are targeting on-premises SharePoint servers, stealing machine keys to maintain persistent access, and warn that patching alone is insufficient without rotating exposed credentials. Microsoft has released security updates to mitigate the flaw and recommends upgrading to the latest version, while the U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added the vulnerability to its Known Exploited Vulnerabilities catalog, mandating federal agencies to address it promptly. The article also notes recent CISA warnings about additional SharePoint vulnerabilities facing exploitation. [Extracted from the article]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Cybersecurity Dive is the property of Industry Dive and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: SharePoint (Computer software)
        Type: general
      – SubjectFull: Computer security vulnerabilities
        Type: general
      – SubjectFull: Internet security
        Type: general
      – SubjectFull: Software upgrades
        Type: general
      – SubjectFull: Microsoft Corp.
        Type: general
    Titles:
      – TitleFull: Microsoft SharePoint under attack via new exploit.
        Type: main
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          Name:
            NameFull: Jones, David
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          Dates:
            – D: 21
              M: 07
              Text: 7/21/2026
              Type: published
              Y: 2026
          Titles:
            – TitleFull: Cybersecurity Dive
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