CVE-2021-31174
published 2021-05-11CVE-2021-31174: Microsoft Excel Information Disclosure Vulnerability
PriorityP424medium5.5CVSS 3.1
AVLACLPRLUINSUCHINAN
EPSS
2.94%
85.6th percentile
Microsoft Excel Information Disclosure Vulnerability
Affected
26 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | excel | — | — |
| microsoft | excel | — | — |
| microsoft | microsoft_365_apps_for_enterprise | >= 16.0.1 < https://aka.ms/OfficeSecurityReleases | https://aka.ms/OfficeSecurityReleases |
| microsoft | microsoft_excel_2013_service_pack_1 | >= 15.0.0.0 < 15.0.5345.1000 | 15.0.5345.1000 |
| microsoft | microsoft_excel_2016 | >= 16.0.0.0 < 16.0.5161.1000 | 16.0.5161.1000 |
| microsoft | microsoft_office_2013_service_pack_1 | >= 15.0.0 < 15.0.5345.1000 | 15.0.5345.1000 |
| microsoft | microsoft_office_2016 | >= 16.0.0 < 16.0.5161.1000 | 16.0.5161.1000 |
| microsoft | microsoft_office_2019 | >= 19.0.0 < https://aka.ms/OfficeSecurityReleases | https://aka.ms/OfficeSecurityReleases |
| microsoft | microsoft_office_online_server | >= 16.0.1 < 16.0.10374.20000 | 16.0.10374.20000 |
| microsoft | microsoft_office_web_apps_server_2013_service_pack_1 | >= 15.0.1 < 15.0.5345.1000 | 15.0.5345.1000 |
| microsoft | office | — | — |
| microsoft | office | — | — |
| microsoft | office | — | — |
| microsoft | office_web_apps_server | — | — |
| msrc | microsoft_365_apps_for_enterprise_for_32-bit_systems | — | — |
| msrc | microsoft_365_apps_for_enterprise_for_64-bit_systems | — | — |
| msrc | microsoft_excel_2013_rt_service_pack_1 | — | — |
| msrc | microsoft_excel_2013_service_pack_1 | — | — |
| msrc | microsoft_excel_2016 | — | — |
| msrc | microsoft_office_2013_rt_service_pack_1 | — | — |
| msrc | microsoft_office_2013_service_pack_1 | — | — |
| msrc | microsoft_office_2016 | — | — |
| msrc | microsoft_office_2019_for_32-bit_editions | — | — |
| msrc | microsoft_office_2019_for_64-bit_editions | — | — |
| msrc | microsoft_office_online_server | — | — |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
nvdv2.02.1LOWAV:L/AC:L/Au:N/C:P/I:N/A:N
vendor_msrc5.5MEDIUM
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Microsoft
Microsoft Excel Information Disclosure Vulnerability
vendor_msrc·2021-05-11·CVSS 5.5
CVE-2021-31174 [MEDIUM] Microsoft Excel Information Disclosure Vulnerability
Microsoft Excel Information Disclosure Vulnerability
FAQ: What type of information could be disclosed by this vulnerability?
The type of information that could be disclosed if an attacker successfully exploited this vulnerability is uninitialized memory.
FAQ: Is the Preview Pane an attack vector for this vulnerability?
No, the Preview Pane is not an attack vector.
Microsoft Office Excel: Microsoft Office Excel
Microsoft: Microsoft
Impact: Information Disclosure
Exploit Status: Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely;Older Software Release:Exploitation Less Likely;DOS:N/A
Remediation: Click to Run
Reference: https://www.microsoft.com/download/details.aspx?familyid=1fb124f1-cb15-4104-b068-7d040204bdd1
Reference: https://www.microsoft.com/d
GHSA
GHSA-h3gp-8jq6-jqxx: Microsoft Excel Information Disclosure Vulnerability
ghsa_unreviewed·2022-05-24
CVE-2021-31174 [MEDIUM] CWE-125 GHSA-h3gp-8jq6-jqxx: Microsoft Excel Information Disclosure Vulnerability
Microsoft Excel Information Disclosure Vulnerability
No detection rules found.
No public exploits indexed.
Checkpoint
Fuzzing the Office Ecosystem
blogs_checkpoint·2021-06-08
CVE-2021-31179 Fuzzing the Office Ecosystem
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## Fuzzing the Office Ecosystem
Research By : Netanel Ben-Simon and Sagi Tzadik
## Introduction
Microsoft Office is a very commonly used software that can be found on almost any standard
Tenable
Microsoft’s June 2021 Patch Tuesday Addresses 49 CVEs (CVE-2021-31955, CVE-2021-31956 and CVE-2021-33742)
blogs_tenable·2021-06-08·CVSS 5.5
[MEDIUM] Microsoft’s June 2021 Patch Tuesday Addresses 49 CVEs (CVE-2021-31955, CVE-2021-31956 and CVE-2021-33742)
## Cloud Exposure
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## OT/IoT Exposure
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## Identity Exposure
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## Business needs
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Qualys
Microsoft & Adobe Patch Tuesday (May 2021) – Qualys covers 85 Vulnerabilities, 26 Critical
blogs_qualys·2021-05-11·CVSS 9.9
CVE-2021-31181 [CRITICAL] Microsoft & Adobe Patch Tuesday (May 2021) – Qualys covers 85 Vulnerabilities, 26 Critical
## Microsoft Patch Tuesday – May 2021
Microsoft patched 55 CVEs in their May 2021 Patch Tuesday release, of which 4 are rated as critical severity. Three 0-day vulnerability patches were included in the release. As of this publication date, none have been exploited.
Qualys released 12 QIDs on the same day, providing vulnerability detection and patch management coverage (where applicable) for all 55 CVEs and the related KBs.
## Critical Microsoft vulnerabilities patched:
CVE-2021-31181 – SharePoint Remote Code Execution Vulnerability
Microsoft released patches addressing a critical RCE vulnerability in SharePoint (CVE-2021-31181). This CVE has a high likelihood of exploitability and is assigned a CVSSv3 base score of 8.8 by the vendor.
CVE-2021-31166 – HTTP Protocol Stack Remote Code
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blogs_crowdstrike·CVSS 7.5
CVE-2026-20929 [HIGH] May 2021 Patch Tuesday: Updates and Analysis
How CrowdStrike is Accelerating Exposure Evaluation as Adversaries Gain Speed Apr 06, 2026
STARDUST CHOLLIMA Likely Compromises Axios npm Package Apr 01, 2026
Falcon for IT Supports Windows Secure Boot Certificate Lifecycle Management Apr 01, 2026
Detecting CVE-2026-20929: Kerberos Authentication Relay via CNAME Abuse Mar 31, 2026
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STARDUST CHOLLIMA Likely Compromises Axios npm Package Apr 01, 2026
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2021-05-11
Published