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CVE-2021-33766

high · 7.3Actively exploited

On the CISA Known Exploited Vulnerabilities catalog

Apply updates per vendor instructions.

Added 2022-01-18Remediation due 2022-02-01

A public exploit / detection template exists

Weaponised detection is publicly available, which meaningfully raises real-world risk regardless of CVSS. nuclei-templates →

Microsoft Exchange Server Information Disclosure Vulnerability

7.3
CVSS
98.1%
EPSS (exploit prob.)
100th
EPSS percentile
2021-07-14
Published

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

Affected products

VendorProductAffected versions
microsoftexchange_server2013
microsoftexchange_server2016
microsoftexchange_server2016
microsoftexchange_server2019
microsoftexchange_server2019

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

References

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2021-33766