CVE-2017-8570

Microsoft Office Remote Code Execution

7.8 HIGHActively exploited (CISA KEV)Public exploitEPSS 89.9%

Published11 Jul 2017
Added to CISA KEV25 Feb 2022
Remediation due25 Aug 2022

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.

CVSS 3.1 breakdown

Attack vectorLocal

Attack complexityLow

Privileges requiredNone

User interactionRequired

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Affected products

Microsoft Office2007 · 2010 · 2013 · 2016

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

Patch & vendor advisories

https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-8570

References

https://github.com/ParsingTeam/ppsx-file-generatorExploitThird Party Advisory
https://github.com/rxwx/CVE-2017-8570Third Party Advisory
https://github.com/tezukanice/Office8570ExploitThird Party Advisory
https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-8570PatchVendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-8570US Government Resource
http://www.securityfocus.com/bid/99445Broken LinkThird Party AdvisoryVDB Entry

Frequently asked

Is CVE-2017-8570 being actively exploited?

Yes. CVE-2017-8570 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 25 Feb 2022.

How severe is CVE-2017-8570?

CVE-2017-8570 has a CVSS 3.1 base score of 7.8, rated high. EPSS estimates a 89.9% probability of exploitation.

Which products are affected by CVE-2017-8570?

Affected products include Microsoft Office.

How do I fix CVE-2017-8570?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2017-8570 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.