CVE-2021-31939
published 2021-06-08CVE-2021-31939: Microsoft Excel Remote Code Execution Vulnerability
PriorityP348high7.8CVSS 3.1
AVLACLPRNUIRSUCHIHAH
EPSS
13.34%
96.0th percentile
Microsoft Excel Remote Code Execution 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 < 15.0.5353.1000 | 15.0.5353.1000 |
| microsoft | microsoft_excel_2016 | >= 16.0.0.0 < 16.0.5173.1000 | 16.0.5173.1000 |
| microsoft | microsoft_office_2013_service_pack_1 | >= 15.0.0 < 15.0.5353.1000 | 15.0.5353.1000 |
| microsoft | microsoft_office_2016 | >= 16.0.0 < 16.0.5173.1000 | 16.0.5173.1000 |
| microsoft | microsoft_office_2019 | >= 19.0.0 < https://aka.ms/OfficeSecurityReleases | https://aka.ms/OfficeSecurityReleases |
| microsoft | microsoft_office_web_apps_server_2013_service_pack_1 | >= 15.0.1 < 15.0.5353.1000 | 15.0.5353.1000 |
| microsoft | office | — | — |
| microsoft | office | — | — |
| microsoft | office | — | — |
| microsoft | office_online_server | >= https://aka.ms/OfficeSecurityReleases < 16.0.10375.20000 | 16.0.10375.20000 |
| 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_web_apps_server_2013_service_pack_1 | — | — |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvdv2.06.8MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P
vendor_msrc7.8HIGH
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GHSA
GHSA-3w8p-33h3-h7v6: Microsoft Excel Remote Code Execution Vulnerability
ghsa_unreviewed·2022-05-24
CVE-2021-31939 [HIGH] GHSA-3w8p-33h3-h7v6: Microsoft Excel Remote Code Execution Vulnerability
Microsoft Excel Remote Code Execution Vulnerability
Microsoft
Microsoft Excel Remote Code Execution Vulnerability
vendor_msrc·2021-06-08·CVSS 7.8
CVE-2021-31939 [HIGH] Microsoft Excel Remote Code Execution Vulnerability
Microsoft Excel Remote Code Execution Vulnerability
FAQ: Is the Preview Pane an attack vector for this vulnerability?
No, the Preview Pane is not an attack vector.
FAQ: According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?
Exploitation of the vulnerability requires that a user open a specially crafted file.
In an email attack scenario, an attacker could exploit the vulnerability by sending the specially crafted file to the user and convincing the user to open the file.
In a web-based attack scenario, an attacker could host a website (or leverage a compromised website that accepts or hosts user-provided content) containing a specially crafted file designed to exploit the vulnerability.
An attacker would have no way to force users
No detection rules found.
No public exploits indexed.
Talos
Microsoft Patch Tuesday for June 2021 — Snort rules and prominent vulnerabilities
blogs_talos·2021-06-08·CVSS 8.8
[HIGH] Microsoft Patch Tuesday for June 2021 — Snort rules and prominent vulnerabilities
By Jon Munshaw, with contributions from Edmund Brumaghin.
Microsoft released its monthly security update Tuesday, disclosing 51 vulnerabilities across its suite of products, breaking last month’s 16-month record of the fewest vulnerabilities disclosed in a month by the company.
There are only four critical vulnerabilities patched in this month, while all the other ones are considered “important.” However, there are several vulnerabilities that Microsoft states are being actively exploited in the wild.
This month’s security update provides updates for several pieces of software and Windows functions, including SharePoint Server, the Windows kernel and Outlook. For a full rundown of these CVEs, head to Microsoft’s security update page. Two of the vulnerabilities Microsoft disclosed today
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)
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Talos
Microsoft Patch Tuesday for June 2021 — Snort rules and prominent vulnerabilities
blogs_talos·2021-06-08·CVSS 8.8
[HIGH] Microsoft Patch Tuesday for June 2021 — Snort rules and prominent vulnerabilities
## Microsoft Patch Tuesday for June 2021 — Snort rules and prominent vulnerabilities
By Jon Munshaw, with contributions from Edmund Brumaghin.
Microsoft released its monthly security update Tuesday, disclosing 51 vulnerabilities across its suite of products, breaking last month’s 16-month record of the fewest vulnerabilities disclosed in a month by the company.
There are only four critical vulnerabilities patched in this month, while all the other ones are considered “important.” However, there are several vulnerabilities that Microsoft states are being actively exploited in the wild.
This month’s security update provides updates for several pieces of software and Windows functions, including SharePoint Server, the Windows kernel and Outlook. For a full rundown of these CVEs, head to M
Qualys
Microsoft & Adobe Patch Tuesday (June 2021) – Microsoft 50 Vulnerabilities with 5 Critical, Adobe 21 Critical Vulnerabilities
blogs_qualys·2021-06-08·CVSS 5.2
CVE-2021-31985 [MEDIUM] Microsoft & Adobe Patch Tuesday (June 2021) – Microsoft 50 Vulnerabilities with 5 Critical, Adobe 21 Critical Vulnerabilities
## Microsoft Patch Tuesday – June 2021
Microsoft patched 50 CVEs in their June 2021 Patch Tuesday release, and five of them are rated as critical severity. Six have applicable exploits.
## Critical Microsoft Vulnerabilities Patched
CVE-2021-31985 – Microsoft Defender Remote Code Execution Vulnerability
Microsoft released patches addressing a critical RCE vulnerability in its Defender product (CVE-2021-31985). This CVE has a high likelihood of exploitability and is assigned a CVSSv3 base score of 7.8 by the vendor.
CVE-2021-31959 – Scripting Engine Memory Corruption Vulnerability
Microsoft released patches addressing a critical memory corruption vulnerability in the Chakra JScript scripting engine. This vulnerability impacts Windows RT, Windows 7, Windows 8, Windows 10, Windows Server
2021-06-08
Published