CVE-2017-8570
HighExploitedPublic exploitMicrosoft Office allows a remote code execution vulnerability due to the way that it handles objects in memory, aka "Microsoft Office Remote Code Execution Vulnerability".
Published Jul 11, 2017 · Updated Apr 22, 2026
Key Facts
Patch immediately- CVE-2017-8570 is a high-severity vulnerability (CVSS 7.8 v3.1) affecting Office (Microsoft), Microsoft Office 2007 SP3, Microsoft Office 2010 SP2, Microsoft Office 2013 SP1, and Microsoft Office 2016..
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Dec 1, 2017. Public exploit code is available.
- EPSS estimates a 90% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
90%
Higher than 99.7% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2017-8570 brief as a PDF
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Description
Microsoft Office allows a remote code execution vulnerability due to the way that it handles objects in memory, aka "Microsoft Office Remote Code Execution Vulnerability". This CVE ID is unique from CVE-2017-0243.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Feb 25, 2022 | Aug 25, 2022 | Not reported |
| Industry KEV feed | Dec 1, 2017 | Aug 25, 2022 | Not reported |
| CIRCL KEV | Feb 25, 2022 | Aug 25, 2022 | Not reported |
| ENISA EUVD | Feb 25, 2022 | n/a | Not reported |
Required action: Apply updates per vendor instructions.
Affected Products
7 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| OfficeMicrosoft | 2007-sp3, 2010-sp2, 2013-sp1, 2016 | n/a |
| Microsoft Office 2007 SP3, Microsoft Office 2010 SP2, Microsoft Office 2013 SP1, and Microsoft Office 2016. | >= Microsoft Office | n/a |
Timeline
Publicly disclosed
Jul 11, 2017
Added to Industry KEV feed
Dec 1, 2017
Added to CISA KEV
Feb 25, 2022
Added to CIRCL KEV
Feb 25, 2022
Added to ENISA EUVD
Feb 25, 2022
Last updated
Apr 22, 2026
References
- advisoryhttps://github.com/rxwx/CVE-2017-8570
- advisory99445
- patchhttps://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-8570
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
FAQ
Common Questions.
Microsoft Office allows a remote code execution vulnerability due to the way that it handles objects in memory, aka "Microsoft Office Remote Code Execution Vulnerability".
Affected: Office (Microsoft) versions 2007-sp3, 2010-sp2, 2013-sp1, 2016; Microsoft Office 2007 SP3, Microsoft Office 2010 SP2, Microsoft Office 2013 SP1, and Microsoft Office 2016. versions >= Microsoft Office. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Dec 1, 2017.
Yes. It was added on Feb 25, 2022 with a federal remediation due date of Aug 25, 2022.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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