CVE-2021-24085
MediumPublished
Microsoft Exchange Server Spoofing Vulnerability
- Published
- Feb 25, 2021
- Updated
- Aug 3, 2024
- Assigning CNA
- microsoft
- Evidence observed
- Aug 4, 2026
Primary CVSS
6.5/ 10Medium
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L4.6%
Low · next 30 days
- Percentile
- 91.3%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
Microsoft Exchange Server Spoofing Vulnerability
Sources
1Proof-of-concept exploit for CVE-2021-24085: CSRF-based elevation of privilege in Microsoft Exchange Server via msExchEcpCanary token forgery, enabling account takeover.
Responsible use
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