Is CVE-2020-0688 actively exploited?

CVE-2020-0688 has no public evidence of in-the-wild exploitation as of 2025-10-29.

What is the CVSS score for CVE-2020-0688?

CVE-2020-0688 has a CVSS score of 8.8 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2020-0688?

Patch guidance is available from microsoft security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2020-0688.

Fix CVE-2020-0688 - HIGH microsoft exchange server

Q: Which products are affected by CVE-2020-0688?

6 products: microsoft exchange server, microsoft exchange server, microsoft exchange server, microsoft exchange server, microsoft exchange server, and 1 more.

Description

A remote code execution vulnerability exists in Microsoft Exchange software when the software fails to properly handle objects in memory, aka 'Microsoft Exchange Memory Corruption Vulnerability'.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: low
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-287 · Improper Authentication CWE-287 · Improper Authentication

Metadata

Primary Vendor: MICROSOFT
Published: 2/11/2020
Last Modified: 10/29/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

microsoft : exchange_servermicrosoft : exchange_servermicrosoft : exchange_servermicrosoft : exchange_servermicrosoft : exchange_servermicrosoft : exchange_server

Remediation Guidance

Executive Summary

View on NIST NVD