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The vulnerability of the Microsoft Outlook email client, as well as Microsoft Office suites, Excel, and 365 Enterprise Apps, relates to insufficient protection of sensitive data, allowing attackers to carry out spear-phishing attacks.
🗓️ 13 Feb 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 2 Views
| Reporter | Title | Published | Views | Family All 26 |
|---|---|---|---|---|
 | CVE-2026-21260 | 10 Feb 202617:51 | – | attackerkb |
 | CVE-2026-21260 | 10 Feb 202617:30 | – | circl |
 | Microsoft Outlook 信息泄露漏洞 | 10 Feb 202600:00 | – | cnnvd |
 | Microsoft Outlook Information Disclosure Vulnerability (CNVD-2026-12557) | 2 Mar 202600:00 | – | cnvd |
 | CVE-2026-21260 | 10 Feb 202617:51 | – | cve |
 | CVE-2026-21260 Microsoft Outlook Spoofing Vulnerability | 10 Feb 202617:51 | – | cvelist |
 | Description of the security update for SharePoint Server Subscription Edition: February 10, 2026 (KB5002833) | 10 Feb 202616:00 | – | mskb |
| Description of the security update for SharePoint Server 2019: February 10, 2026 (KB5002834) | 10 Feb 202616:00 | – | mskb |
| Description of the security update for SharePoint Server 2019 Language Pack: February 10, 2026 (KB5002836) | 10 Feb 202616:00 | – | mskb |
| Description of the security update for Word 2016: February 10, 2026 (KB5002839) | 10 Feb 202616:00 | – | mskb |
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13 Feb 2026 00:00Current
5.8Medium risk
Vulners AI Score5.8
CVSS 37.5
CVSS 27.8
EPSS0.01425