The vulnerability of the Skype for Business Server’s instant messaging program, related to improper external management of file names or paths, allows a hacker to execute arbitrary code.
🗓️ 11 Sep 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 6 Views
| Reporter | Title | Published | Views | Family All 15 |
|---|---|---|---|---|
 | CVE-2026-66302 | 8 Sep 202620:14 | – | circl |
 | CVE-2026-66302 | 8 Sep 202618:30 | – | cve |
 | CVE-2026-66302 Skype for Business Remote Code Execution Vulnerability | 8 Sep 202618:30 | – | cvelist |
 | EUVD-2026-74044 | 8 Sep 202618:30 | – | euvd |
 | Cumulative update for Skype for Business Server Subscription Edition: September 8, 2026 (KB5123287) | 8 Sep 202614:00 | – | mskb |
| Cumulative update for Skype for Business Server 2019: September 8, 2026 (KB5123300) | 8 Sep 202614:00 | – | mskb |
| Cumulative update for Skype for Business Server 2015: September 8, 2026 (KB5123301) | 8 Sep 202614:00 | – | mskb |
 | KLA91268 Multiple vulnerabilities in Microsoft Office | 8 Sep 202600:00 | – | kaspersky |
 | Skype for Business Remote Code Execution Vulnerability | 8 Sep 202614:00 | – | mscve |
 | vulnerabilities present in Microsoft Office | 8 Sep 202618:48 | – | ncsc |
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11 Sep 2026 00:00Current
CVSS 39.8
CVSS 210
EPSS0.00543