CVE-2017-8570
CVE-2017-8570 is a high-severity vulnerability in Microsoft Office with a CVSS 3.x base score of 7.8. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2022-02-25).
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- CVSS v2: 9.3
- EPSS exploit prediction: 90% (100th percentile)
- Actively exploited: Yes — listed in CISA KEV (added 2022-02-25)
- EU (EUVD) id: EUVD-2017-17520
- EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2022-02-25)
- Affected product: Microsoft Office
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2017-8570?
- 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.
- How severe is CVE-2017-8570?
- CVE-2017-8570 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2017-8570 being actively exploited?
- Yes. CVE-2017-8570 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-02-25, which means active exploitation has been confirmed. It should be prioritised for remediation.
- What products are affected by CVE-2017-8570?
- CVE-2017-8570 primarily affects Microsoft Office. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2017-8570?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
- Does CVE-2017-8570 have an EU (EUVD) identifier?
- Yes. CVE-2017-8570 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2017-17520. It is also flagged as exploited in the EUVD (since 2022-02-25).
- When was CVE-2017-8570 published?
- CVE-2017-8570 was published on 2017-07-11 and last updated on 2026-06-17.
References
- http://www.securityfocus.com/bid/99445
- https://github.com/ParsingTeam/ppsx-file-generator
- https://github.com/rxwx/CVE-2017-8570
- https://github.com/tezukanice/Office8570
- https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-8570
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-8570
Affected products (6)
- cpe:2.3:a:microsoft:office:2007:sp3:*:*:*:*:*:*
- cpe:2.3:a:microsoft:office:2010:sp2:*:*:*:*:*:*
- cpe:2.3:a:microsoft:office:2013:sp1:*:*:*:*:*:*
- cpe:2.3:a:microsoft:office:2013:sp1:*:*:rt:*:*:*
- cpe:2.3:a:microsoft:office:2016:*:*:*:*:*:x64:*
- cpe:2.3:a:microsoft:office:2016:*:*:*:*:*:x86:*
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