CVE-2026-70571CriticalCVSS 8.1
Microsoft Exchange Server Remote Code Execution Vulnerability
🔗 CVE IDs covered (1)
📋 Description
Stack-based buffer overflow in Microsoft Exchange Server allows an unauthorized attacker to execute code over a network.
🎯 Affected products4
- Microsoft Exchange Server 2016 Cumulative Update 23
- Microsoft Exchange Server 2019 Cumulative Update 14
- Microsoft Exchange Server 2019 Cumulative Update 15
- Microsoft Exchange Server Subscription Edition RTM
✅ Remediation
KB5128896 (Security Update) — fixed build 15.02.1748.055 KB5128895 (Security Update) — fixed build 15.02.2562.056 KB5128898 (Security Update) — fixed build 15.01.2507.077 KB5128897 (Security Update) — fixed build 15.02.1544.050
🔗 References (6)
- advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70571
- referencehttps://support.microsoft.com/help/5128896
- patchhttps://www.microsoft.com/en-us/download/details.aspx?id=108875
- referencehttps://support.microsoft.com/help/5128895
- referencehttps://support.microsoft.com/help/5128898
- referencehttps://support.microsoft.com/help/5128897