CVE-2026-55007
NVD HIGH 8.1 · published 2026-09-08 · 1 on the wire
Double free in Microsoft Exchange Server allows an unauthorized attacker to execute code over a network.
Exploited in the wild
Not on KEV
Not in CISA's Known Exploited Vulnerabilities catalogue as of the last daily pull. Absence is not proof of safety.
EPSS · 30-day forecast
1%
Chance of exploitation in the next 30 days, 52th percentile of all CVEs. A forecast; KEV outranks it.
CVSS · NVD
8.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Internet exposure
115,612
Exchange hosts Shodan could see worldwide on 2026-09-07. A scan count, not an inventory.
On the wire1
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bot-protected