CVE-2017-8570 — Microsoft Office Remote Code Execution Vulnerability

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.

01What is this vulnerability?

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.

02Affected products

Vendor	Product	Versions
Microsoft Corporation	Microsoft Office 2007 SP3, Microsoft Office 2010 SP2, Microsoft Office 2013 SP1, and Microsoft Office 2016.	Microsoft Office

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2022-02-25. Ransomware use: Unknown.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

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07Related CVEs

08Timeline

• Published: 2017-07-11T21:00:00.000Z
• Last modified: 2025-10-21T23:55:38.760Z
• Added to CISA KEV: 2022-02-25
• BOD 22-01 due: 2022-08-25

09References

• www.securityfocus.com — http://www.securityfocus.com/bid/99445
• github.com — https://github.com/rxwx/CVE-2017-8570
• github.com — https://github.com/tezukanice/Office8570
• portal.msrc.microsoft.com — https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-8570
• github.com — https://github.com/ParsingTeam/ppsx-file-generator