CVE-2021-33766
CISA KEV
ACT NOW
Priority: 0.00
BB Relevance:
0/100
Published: N/A
Modified: N/A
First seen: 2026-10-29
Status: pending_score
Description
Microsoft Exchange Server contains an information disclosure vulnerability which can allow an unauthenticated attacker to steal email traffic from target.
CISA Known Exploited Vulnerability
Vendor / Product
Microsoft — Exchange Server
Date Added
2022-01-18
Remediation Due
2022-02-01
https://nvd.nist.gov/vuln/detail/CVE-2021-33766
Affected Software (5)
| Vendor | Product | Version |
|---|---|---|
| microsoft | exchange_server | 2013 |
| microsoft | exchange_server | 2016 |
| microsoft | exchange_server | 2016 |
| microsoft | exchange_server | 2019 |
| microsoft | exchange_server | 2019 |
References & Advisories (4)
US Government Resource
Third Party Advisory
VDB Entry
Patch
Vendor Advisory
Patch
Vendor Advisory