Windows apps · Application version · September 22, 2023

Microsoft Teams Classic 1.6.00.26474

Microsoft Teams Classic 1.6.00.26474, released September 22, 2023, fixes 1 CVE in Microsoft Teams Classic. One of them is being exploited (CVE-2023-4863); 1 on CISA KEV. Patch Radar priority: Patch now. The latest Microsoft Teams Classic is 1.8.00.27654, which also fixes every one of these CVEs.

Patch now1 on CISA KEV1 publicly disclosed

Superseded. The latest Microsoft Teams Classic is 1.8.00.27654, which also fixes every CVE on this page. Install that instead.

CVEs closed

None rated Critical

Exploited

CVE-2023-4863

Highest CVSS

9.6

Base score, 0 to 10

Highest EPSS

0.9998

99th percentile

Applies to

Product	Version
Microsoft Teams Classic	1.6.00.26474

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
Patch now	CVE-2023-4863	Chromium: CVE-2023-4863 Heap buffer overflow in WebP	9.6	0.9998	KEVDisclosedExploited

Other Microsoft Teams Classic versions with security fixes

Microsoft Teams Classic 1.6.00.20074
Microsoft Teams Classic

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