CVE-2026-55008

critical · 9.6

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.

9.6

CVSS

0.9%

EPSS (exploit prob.)

57th

EPSS percentile

2026-07-14

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Weaknesses

CWE-79

Affected products

Vendor	Product	Affected versions
microsoft	exchange_server	2016
microsoft	exchange_server	2019
microsoft	exchange_server	2019
microsoft	exchange_server_subscription_edition	< 15.02.2562.045

Check a specific version with /api/v1/cve/match.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55008

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-55008