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CVE-2021-31196: Microsoft Exchange Server Information Disclosure Vulnerability
Microsoft Exchange Server · in CISA KEV since 2024-08-21
2024-08-21added to KEV
2024-09-11federal remediation due date
54.06%EPSS exploit probability (30 days) 99.0th percentile
7.2 HIGHCVSS 3.1
Unknownknown ransomware use
1,134days from NVD publication to KEV
What it is
Microsoft Exchange Server contains an information disclosure vulnerability that allows for remote code execution.
Required action (CISA)
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
| CWE | — |
|---|---|
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
| NVD published | 2021-07-14 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2021-31196.json · all KEV CVEs
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Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.
Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.