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CVE-2021-27059Microsoft Office Remote Code Execution Vulnerability

Microsoft Office Remote Code Execution Vulnerability

7.6 HIGHEPSS 6.07%⚡ Known Exploited (CISA KEV)NVD: Analyzed

Last updated: 2026-08-19 19:22 UTC

OverviewCVSS details

7.6HIGHCVSS 3.1

Score source: microsoft (CNA)
NVD status: Analyzed
Published: Mar 11, 2021
Assigner: microsoft

Affected

Microsoft Office 2010 Service Pack 2 (Microsoft)

Versions: 13.0.0.0 before 14.0.7266.5000
Fixed in: 14.0.7266.5000

+2 more products →

Exploitation

Public exploit: None listed
CISA KEV: Listed · Nov 3, 2021
KEV due date: Nov 17, 2021
Ransomware use: Unknown
SSVC: Exploitation active · Automatable no · Impact total

EPSS · FIRST, scored Nov 8

6.07%chance of exploitation in 30 days

Higher than 93.44% of CVEs

CVSS 3.1 · microsoft (CNA)

7.6High

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

Attack vector: Network
Attack complexity: High
Privileges required: High
User interaction: Required
Scope: Changed
Confidentiality impact: High
Integrity impact: High
Availability impact: High

CVSS 3.1 · microsoft (CNA)

7.6High

CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C

Attack vector: Network
Attack complexity: High
Privileges required: High
User interaction: Required
Scope: Changed
Confidentiality impact: High
Integrity impact: High
Availability impact: High

CVSS 3.1 · NVD

6.5Medium

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

Attack vector: Local
Attack complexity: Low
Privileges required: High
User interaction: Required
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

CVSS 2.0 · NVD

8.5High

AV:N/AC:M/Au:S/C:C/I:C/A:C

Attack vector: Network
Attack complexity: Medium
Authentication: Single
Confidentiality impact: Complete
Integrity impact: Complete
Availability impact: Complete

NVD status: Analyzed

Overview Affected Products References

Overview

Severity

Score	Severity	Version	Vector String
7.6	HIGH	3.1microsoft (CNA)	CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H
7.6	HIGH	3.1microsoft (CNA)	CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C
6.5	MEDIUM	3.1NVD	CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
8.5	HIGH	2.0NVD	AV:N/AC:M/Au:S/C:C/I:C/A:C

CISA required action

⚡ Known exploited · remediation due Nov 17, 2021

Apply updates per vendor instructions.

Details

CVE ID: CVE-2021-27059
Status: Analyzed
Assigner (CNA): microsoft
Published: Mar 11, 2021
Last modified: 2026-08-19 19:22 UTC

Sources

Refreshed hourly from the sources above. Last fetched 2026-11-09 11:15 UTC.