[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fJEhw7MZQYtxwSzlFzse7aUrq_v0CmaVnIFRkqaFFytQ":3},{"article":4,"iocs":38,"watch_terms":43,"solutions":44,"lesson":134},{"id":5,"title":6,"slug":7,"summary":8,"ai_summary":9,"brief":10,"url":11,"image_url":12,"published_at":13,"ingested_at":14,"relevance_score":15,"entities":16,"category_id":25,"category":26,"article_tags":30},"24c154bc-6eab-4633-bff8-50d61936f409","Microsoft Exchange Flaw Lets Authenticated Attackers Read Other Users' Mailboxes","microsoft-exchange-flaw-lets-authenticated-attackers-read-other-users-mailboxes-002601","Microsoft has released out-of-band security updates to address a high-severity flaw in Microsoft Exchange Server that could allow an attacker to escalate privileges under certain conditions. The vulnerability, tracked as CVE-2026-96940, is rated 8.8 on the CVSS scoring system. \"Weak authorization in Microsoft Exchange Server allows an authenticated attacker to elevate privileges over a","Microsoft has released out-of-band security updates for a critical vulnerability (CVE-2026-96940) in Microsoft Exchange Server. The flaw, rated 8.8 CVSS, allows an authenticated attacker to escalate privileges and access other users' mailboxes within the same organization. While Exchange Online customers are protected by a service-side fix, on-premises users must install the provided updates.","Microsoft Exchange Server flaw allows authenticated attackers to read other users' mailboxes.","https:\u002F\u002Fthehackernews.com\u002F2026\u002F10\u002Fmicrosoft-exchange-flaw-lets.html","https:\u002F\u002Fblogger.googleusercontent.com\u002Fimg\u002Fb\u002FR29vZ2xl\u002FAVvXsEiBNa12GUjRngANug2kbws6i9X_HPN2PRVbOcxr7GtaXMKq9PloaCTD7DuYC8zZIcrg5Wa-F5pDv9y-00EMX4QWvovMz-ZWK5vNZ-gkIdEA7UiZQ1SqBCZof411VOQt6nQrvZCYxZpmzPA3hUeFia9KVP45Q1J1OPkiIH_Fhy5hoiOo9z6eYw1H16RgvKs5\u002Fs1600\u002Fms-emails.jpg","2026-10-05T16:21:52+00:00","2026-10-05T18:00:29.345876+00:00",8,[17,20,23],{"name":18,"type":19},"Microsoft Exchange Server","product",{"name":21,"type":22},"Microsoft","vendor",{"name":24,"type":19},"Exchange Online","80544778-fabb-4dcd-aa35-17492e5dcf4f",{"id":25,"icon":27,"name":28,"slug":29},null,"Vulnerabilities","vulnerabilities",[31,33],{"category":32},{"id":25,"icon":27,"name":28,"slug":29},{"category":34},{"id":35,"icon":27,"name":36,"slug":37},"e7b231c8-5f79-4465-8d38-1ef13aea5a14","Threat Intelligence","threat-intelligence",[39],{"type":40,"value":41,"context":42},"cve","CVE-2026-96940","Microsoft Exchange Server vulnerability allowing mailbox access",[21,18,24],{"controls":45,"vendors":130},[46,74,102],{"slug":47,"name":48,"problem":49,"products":50},"privileged-access-management","Privileged access management (PAM)","Admin accounts stop being one stolen password away from control of everything.",[51,58,66],{"vendor_slug":52,"vendor_name":53,"vendor_logo":54,"product_slug":47,"product_name":55,"url":56,"description":57},"threatlocker","ThreatLocker","\u002Fvendor-logos\u002Fthreatlocker.png","Privileged Access Management","https:\u002F\u002Fwww.threatlocker.com\u002Fcapabilities\u002Fprivileged-access-management","Gives elevated rights to specific applications only where needed, so users do not need local admin accounts.",{"vendor_slug":59,"vendor_name":60,"vendor_logo":61,"product_slug":62,"product_name":63,"url":64,"description":65},"beyondtrust","BeyondTrust","\u002Fvendor-logos\u002Fbeyondtrust.png","password-safe","BeyondTrust Password Safe","https:\u002F\u002Fwww.beyondtrust.com\u002Fproducts\u002Fpassword-safe","Privileged password and session management.",{"vendor_slug":67,"vendor_name":68,"vendor_logo":69,"product_slug":70,"product_name":71,"url":72,"description":73},"palo-alto-networks","Palo Alto Networks","\u002Fvendor-logos\u002Fpalo-alto-networks.png","idira-privileged-access-management","Idira Privileged Access Management","https:\u002F\u002Fwww.paloaltonetworks.com\u002Fidira\u002Fhuman\u002Fprivileged-access-management","Privileged access management from the former CyberArk portfolio: vaulting, rotation, just-in-time access and session monitoring.",{"slug":75,"name":76,"problem":77,"products":78},"identity-threat-detection","Identity threat detection and response (ITDR)","Attackers who log in with real, stolen credentials get noticed.",[79,86,94],{"vendor_slug":80,"vendor_name":21,"vendor_logo":81,"product_slug":82,"product_name":83,"url":84,"description":85},"microsoft","\u002Fvendor-logos\u002Fmicrosoft.png","defender-for-identity","Microsoft Defender for Identity","https:\u002F\u002Fwww.microsoft.com\u002Fen-us\u002Fsecurity\u002Fbusiness\u002Fsiem-and-xdr\u002Fmicrosoft-defender-for-identity","Detects attacks against on-premises Active Directory and hybrid identities.",{"vendor_slug":87,"vendor_name":88,"vendor_logo":89,"product_slug":90,"product_name":91,"url":92,"description":93},"crowdstrike","CrowdStrike","\u002Fvendor-logos\u002Fcrowdstrike.png","falcon-identity-protection","Falcon Identity Protection","https:\u002F\u002Fwww.crowdstrike.com\u002Fen-us\u002Fplatform\u002Fnext-gen-identity-security\u002Fidentity-protection\u002F","Detection of identity attacks against Active Directory and Entra ID, with risk-based MFA.",{"vendor_slug":95,"vendor_name":96,"vendor_logo":97,"product_slug":98,"product_name":99,"url":100,"description":101},"acalvio","Acalvio","\u002Fvendor-logos\u002Facalvio.png","shadowplex-identity-protection","ShadowPlex Identity Protection","https:\u002F\u002Fwww.acalvio.com\u002Fproducts\u002Fidentity-protection\u002F","Decoy accounts and credentials that expose identity attacks and credential misuse early.",{"slug":103,"name":104,"problem":105,"products":106},"patch-management","Automated patch management","Known holes get closed in days, not months.",[107,115,123],{"vendor_slug":108,"vendor_name":109,"vendor_logo":110,"product_slug":111,"product_name":112,"url":113,"description":114},"manageengine","ManageEngine","\u002Fvendor-logos\u002Fmanageengine.png","patch-manager-plus","ManageEngine Patch Manager Plus","https:\u002F\u002Fwww.manageengine.com\u002Fpatch-management\u002F","Patch management for operating systems and third-party applications, on premises or in the cloud.",{"vendor_slug":116,"vendor_name":117,"vendor_logo":118,"product_slug":119,"product_name":120,"url":121,"description":122},"action1","Action1","\u002Fvendor-logos\u002Faction1.png","action1-patch-management","Action1 Patch Management","https:\u002F\u002Fwww.action1.com\u002F","Cloud-native patch management for Windows, macOS and third-party applications.",{"vendor_slug":124,"vendor_name":125,"vendor_logo":126,"product_slug":103,"product_name":127,"url":128,"description":129},"qualys","Qualys","\u002Fvendor-logos\u002Fqualys.png","Qualys Patch Management","https:\u002F\u002Fwww.qualys.com\u002Fapps\u002Fpatch-management\u002F","Patch deployment for operating systems and third-party applications, linked to vulnerability findings.",[131],{"slug":80,"name":21,"logo_path":81,"roles":132},[133],"affected",{"slug":135,"title":136,"body":137,"framework_refs":138,"framework_notes":152},"exchange-privilege-escalation-flaw-exposes-user-mailboxes","Exchange Privilege Escalation Flaw Exposes User Mailboxes","A critical vulnerability in Microsoft Exchange Server (CVE-2026-96940, CVSS 8.8) allows any authenticated user to escalate privileges and read the private mailboxes of other users within the same organization. This is particularly dangerous because the attacker only needs valid credentials — a low bar in environments where phishing or credential stuffing is common. On-premises Exchange deployments are especially at risk since they require manual patching, unlike Exchange Online which received an automatic service-side fix. The exposure of mailbox data can lead to insider threats, corporate espionage, compliance violations, and reputational damage. This incident underscores the critical importance of timely patch application and the principle of least privilege in messaging infrastructure.",[139,140,141,142,143,144,145,146,147,148,149,150,151],"CIS Control 7 – Continuous Vulnerability Management","CIS Control 6 – Access Control Management","CIS Control 8 – Audit Log Management","NIST SP 800-53 SI-2 – Flaw Remediation","NIST SP 800-53 AC-2 – Account Management","NIST SP 800-53 AC-6 – Least Privilege","NIST SP 800-53 AU-2 – Event Logging","NIST CSF ID.RA-1 – Asset Vulnerabilities Identified","GDPR Article 32 – Security of Processing","GDPR Article 33 – Notification of Personal Data Breach","ITIL – Patch Management Practice","ITIL – Incident Management Practice","ISO\u002FIEC 27001 A.12.6.1 – Management of Technical Vulnerabilities",{}]