Is CVE-2021-31196 exploitable?

Yes — CVE-2021-31196 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it is confirmed exploited in the wild.

Is CVE-2021-31196 a false positive?

No practitioners have marked CVE-2021-31196 a false positive so far (2 verdicts).

How do I remediate CVE-2021-31196?

Practitioners have shared remediation steps for CVE-2021-31196 — see the remediation notes on this page.

CVE-2021-31196

is CVE-2021-31196real, exploitable, or a false positive? Here's the community ground truth.

☆ Watch

High · CVSS 7.2EPSS 46.4%CISA KEV

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Microsoft Exchange Server Remote Code Execution Vulnerability

NVD only has a brief summary for this one — the community fills in the real-world detail below.

References

NVD MITRE CVE.org CISA KEV

Published Jul 14, 2021

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Community ground truth

Community verdict

2 verdicts

Not a real issue

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Community real-world severity: High (High 2) — CVSS base score 7.2

In line with its CVSS base score.

Field notes & remediation

Verdicts are the quick signal — notes are the evidence and fixes behind them.

0
Field note · Nadia PetrovaCurated
Microsoft Exchange Server Information Disclosure Vulnerability — Microsoft Exchange Server contains an information disclosure vulnerability that allows for remote code execution. Listed in the CISA KEV catalog (added 2024-08-21) — confirmed exploited in the wild, not theoretical. FIRST EPSS puts the chance of exploitation in the next 30 days at ~46%. Treat it as real and prioritize remediation over triage.
0
Remediation · Aisha RahmanCurated
Required action for Microsoft Exchange Server: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. CISA set a federal remediation due date of 2024-09-11. After patching, verify the vulnerable path is no longer reachable before closing the finding.