Critical severity9.3NVD Advisory· Published Oct 13, 2026· Updated Oct 13, 2026

CVE-2026-70279

Description

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.

Affected products

Microsoft/Exchange Serverllm-fuzzy

Patches

Vulnerability mechanics

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70279nvd

News mentions

Microsoft Patch Tuesday for October 2026 — Snort rules and prominent vulnerabilities
Cisco Talos Intelligence · Oct 13, 2026

cvss	0.605
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000