CVE-2026-70571High· 8.1▾ TwilightStack-based buffer overflow in Microsoft Exchange Server allows an unauthorized attacker to execute code over a network.
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 44.6 · likelihood 0.3 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Oct 15.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.9%
0.9% → 1.4%
Stack-based buffer overflow in Microsoft Exchange Server allows an unauthorized attacker to execute code over a network.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-96185High· 7.5Microsoft Exchange Online Remote Code Execution Vulnerability
CVE-2026-108431High· 8.8Microsoft Office Word Remote Code Execution Vulnerability
CVE-2026-108440High· 8.8Microsoft Office Word Remote Code Execution Vulnerability
CVE-2026-108445High· 8.8Microsoft Office Word Remote Code Execution Vulnerability
CVE-2026-87696High· 7.5Improper verification of cryptographic signature in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.
CVE-2026-87692High· 7.8Deserialization of untrusted data in Microsoft Exchange Server allows an authorized attacker to elevate privileges locally.