CVE-2021-43256
published 2021-12-15CVE-2021-43256: Microsoft Excel Remote Code Execution Vulnerability
PriorityP341high7.8CVSS 3.1
AVLACLPRNUIRSUCHIHAH
EPSS
2.06%
79.2th percentile
Microsoft Excel Remote Code Execution Vulnerability
Affected
24 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | excel | — | — |
| microsoft | excel | — | — |
| microsoft | excel_rt | — | — |
| 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 < 15.0.5407.1000 | 15.0.5407.1000 |
| microsoft | microsoft_excel_2016 | >= 16.0.0.0 < 16.0.5254.1000 | 16.0.5254.1000 |
| microsoft | microsoft_office_2019 | >= 19.0.0 < https://aka.ms/OfficeSecurityReleases | https://aka.ms/OfficeSecurityReleases |
| microsoft | microsoft_office_ltsc_2021 | >= 16.0.1 < https://aka.ms/OfficeSecurityReleases | https://aka.ms/OfficeSecurityReleases |
| microsoft | microsoft_office_web_apps_server_2013_service_pack_1 | >= 15.0.1 < 15.0.5407.1000 | 15.0.5407.1000 |
| microsoft | office | — | — |
| microsoft | office_long_term_servicing_channel | — | — |
| microsoft | office_online_server | >= https://aka.ms/OfficeSecurityReleases < 16.0.10381.20001 | 16.0.10381.20001 |
| microsoft | office_web_apps | — | — |
| 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_2019_for_32-bit_editions | — | — |
| msrc | microsoft_office_2019_for_64-bit_editions | — | — |
| msrc | microsoft_office_ltsc_2021_for_32-bit_editions | — | — |
| msrc | microsoft_office_ltsc_2021_for_64-bit_editions | — | — |
| msrc | microsoft_office_web_apps_server_2013_service_pack_1 | — | — |
| msrc | office_online_server | — | — |
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-xf9j-qfgm-f8jm: Microsoft Excel Remote Code Execution Vulnerability
ghsa_unreviewed·2021-12-16
CVE-2021-43256 [HIGH] GHSA-xf9j-qfgm-f8jm: Microsoft Excel Remote Code Execution Vulnerability
Microsoft Excel Remote Code Execution Vulnerability
Microsoft
Microsoft Excel Remote Code Execution Vulnerability
vendor_msrc·2021-12-14·CVSS 7.8
CVE-2021-43256 [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.
Microsoft Office Excel: Microsoft Office Excel
Microsoft: Microsoft
Impact: Remote Code Execution
Exploit Status: Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely;Older Software Release:Exploitation Less Likely;DOS:N/A
Reference: https://www.microsoft.com/downloads/details.aspx?familyid=8930dfc7-7951-4390-99ee-ae9131412464
Remediation: Click to Run
Reference: https://www.microsoft.com/downloads/details.aspx?familyid=1d8261fc-456c-44dc-a6b1-491ff7ebd308
Reference: https://www.microsoft.com/downloads/details.aspx?familyid=8c45fd44-46b7-4989-b060-5c2e9a3eaf5b
Reference: https://www.micro
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2021-12-15
Published