The vulnerability of Microsoft Exchange Server servers, related to errors in information representation by the user interface, allows attackers to perform spear-phishing attacks.
🗓️ 16 Feb 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 7 Views
| Reporter | Title | Published | Views | Family All 22 |
|---|---|---|---|---|
 | CVE-2026-21527 | 10 Feb 202617:51 | – | attackerkb |
 | CVE-2026-21527 | 10 Feb 202617:30 | – | circl |
 | Microsoft Exchange Server 安全漏洞 | 10 Feb 202600:00 | – | cnnvd |
 | CVE-2026-21527 | 10 Feb 202617:51 | – | cve |
 | CVE-2026-21527 Microsoft Exchange Server Spoofing Vulnerability | 10 Feb 202617:51 | – | cvelist |
 | Description of the security update for Microsoft Exchange Server Subscription Edition RTM: February 10, 2026 (KB5074992) | 10 Feb 202616:00 | – | mskb |
| Description of the security update for Microsoft Exchange Server 2019 CU15: February 10, 2026 (KB5074993) | 10 Feb 202616:00 | – | mskb |
| Description of the security update for Microsoft Exchange Server 2019 CU14: February 10, 2026 (KB5074994) | 10 Feb 202616:00 | – | mskb |
| Description of the security update for Microsoft Exchange Server 2016 CU23: February 10, 2026 (KB5074995) | 10 Feb 202616:00 | – | mskb |
 | KLA90878 Multiple vulnerabilities in Microsoft Products (ESU) | 10 Feb 202600:00 | – | kaspersky |
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16 Feb 2026 00:00Current
6Medium risk
Vulners AI Score6
CVSS 26.4
CVSS 36.5
EPSS0.0768