← All advisories

Medium severity6.6CISA KEVNVD Advisory· Published May 11, 2021· Updated Jun 17, 2026

CVE-2021-31207

CVE-2021-31207

Description

Microsoft Exchange Server Security Feature Bypass Vulnerability

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

6

Microsoft/Exchange Serverllm-fuzzy6 versions
(expand)+ 5 more
- (no CPE)
- cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:*
- cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_19:*:*:*:*:*:*
- cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_20:*:*:*:*:*:*
- cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_8:*:*:*:*:*:*
- cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_9:*:*:*:*:*:*

Patches

Vulnerability mechanics

References

4

portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31207nvdPatchVendor Advisory
packetstormsecurity.com/files/163895/Microsoft-Exchange-ProxyShell-Remote-Code-Execution.htmlnvdExploitThird Party AdvisoryVDB Entry
www.zerodayinitiative.com/advisories/ZDI-21-819/nvdThird Party AdvisoryVDB Entry
www.cisa.gov/known-exploited-vulnerabilities-catalognvdUS Government Resource

News mentions

0

No linked articles in our index yet.