CVE-2026-70279
Affected Microsoft products: Microsoft Exchange Server 2016 Cumulative Update 23, Microsoft Exchange Server 2019 Cumulative Update 15, Microsoft Exchange Server Subscr…
Published Oct 13, 2026 · updated Oct 13, 2026 · Microsoft Exchange
Affected Microsoft products: Microsoft Exchange Server 2016 Cumulative Update 23, Microsoft Exchange Server 2019 Cumulative Update 15, Microsoft Exchange Server Subscription Edition RTM, Microsoft Exchange Server 2019 Cumulative Update 14.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Oct 13, 2026 · Microsoft Security Update Guide
Detected
Affected Microsoft products: Microsoft Exchange Server 2016 Cumulative Update 23, Microsoft Exchange Server 2019 Cumulative Update 15, Microsoft Exchange Server Subscription Edition RTM, Microsoft Exchange Server 2019 Cumulative Update 14.
Affected
- microsoft Microsoft Exchange Server 2016 Cumulative Update 23version unspecified
- microsoft Microsoft Exchange Server 2019 Cumulative Update 14version unspecified
- microsoft Microsoft Exchange Server 2019 Cumulative Update 15version unspecified
- microsoft Microsoft Exchange Server Subscription Edition RTMversion unspecified
Sources
- CVE.orgVulnerability recordCVE-2026-70279
Official CVE identifier
cve.org - Microsoft Security Update GuideVendor advisoryCVE-2026-70279
Microsoft Exchange Server 2016 Cumulative Update 23, Microsoft Exchange Server 2019 Cumulative Update 15, Microsoft Exchange Server Subscription Edition RTM, Microsoft Exchange Server 2019 Cumulative Update 14
msrc.microsoft.com