CVE-2021-31196

CISA description

Microsoft Exchange Server contains an information disclosure vulnerability that allows for remote code execution.

Required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Notes & references

• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2021-31196
• https://nvd.nist.gov/vuln/detail/CVE-2021-31196

Where this lands in 800-53

Vulnerability data triggers these controls during assessment and continuous monitoring.

• RA-5 · Vulnerability Monitoring and Scanning
• SI-2 · Flaw Remediation
• CM-6 · Configuration Settings
• SI-7 · Software, Firmware, and Information Integrity
• CM-8 · System Component Inventory

External lookups

• NVD · CVE-2021-31196
• CVE.org · CVE-2021-31196
• CISA KEV catalog (canonical)