CVE-2017-8570Microsoft Office
NVDCVSS scored by NVD (NIST)
Vulnerability Summary
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 v3.1 Base Metrics — Score 7.8 (HIGH)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HAttack VectorLocal
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
Affected & Patched Versions
- Microsoft Office
No patched version published yet
Until a fix ships, reduce exposure:
- Restrict access to the affected service or interface to trusted networks.
- Disable the affected feature if you do not need it.
- Watch the vendor advisory for a firmware or software update.
What to do
Patch now. CISA lists this flaw as exploited in the wild and set a federal remediation deadline of Aug 25, 2022.
- Check whether you run Microsoft Office and which version.
- No patched version is listed yet. Limit access to the affected service to trusted networks, and disable the feature if you can.
- Subscribe to the vendor advisory so you learn when a fix ships.
- Review logs and exposed services for signs of earlier compromise.
CISA required action: Apply updates per vendor instructions.
CISA KEV Status
Listed in Known Exploited Vulnerabilities
Added: Feb 25, 2022
Remediation due: Aug 25, 2022 (deadline passed)
Remediation due: Aug 25, 2022 (deadline passed)
Timeline
- Jul 11, 2017Published
- Feb 25, 2022Added to CISA KEV catalog
- Aug 25, 2022KEV remediation due date
- Apr 22, 2026Record last modified
Score, severity and exploitation changes are tracked from the day Watchtower started logging them.
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External References
- Advisoryhttp://www.securityfocus.com/bid/99445
- Exploithttps://github.com/ParsingTeam/ppsx-file-generator
- Advisoryhttps://github.com/rxwx/CVE-2017-8570
- Exploithttps://github.com/tezukanice/Office8570
- Patchhttps://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-8570
- Advisoryhttp://www.securityfocus.com/bid/99445
- Exploithttps://github.com/ParsingTeam/ppsx-file-generator
- Advisoryhttps://github.com/rxwx/CVE-2017-8570
- Exploithttps://github.com/tezukanice/Office8570
- Patchhttps://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-8570
- Advisoryhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-8570
Data last checked: Nov 15, 2026 03:31 UTC