← All advisories

High severity8.1NVD Advisory· Published Sep 8, 2026· Updated Sep 8, 2026

CVE-2026-55007

CVE-2026-55007

Description

Double free in Microsoft Exchange Server allows an unauthorized attacker to execute code over a network.

Affected products

1

Microsoft/Exchange Serverllm-fuzzy

Patches

Vulnerability mechanics

References

1

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55007nvd

News mentions

1

Massive Microsoft Patch Tuesday September 2026 – 973 Vulnerabilities Fixed, Including 2 Zero-Days
Cyber Security News · Sep 8, 2026