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CVE-2017-8570

96
FAUCET Score

CVE-2017-8570 is a remote code execution vulnerability in Microsoft Office, allowing attackers to execute arbitrary code due to improper handling of objects in memory. This vulnerability carries a high CVSS score of 7.8, indicating a low attack complexity and the potential for complete compromise of confidentiality, integrity, and availability. It is actively exploited in the wild, as confirmed by its presence in the KEV catalog and an exceptionally high EPSS score. Exploit code, such as EDB-44263, is publicly available, and the vulnerability has garnered significant community discussion and media coverage, highlighting its widespread impact and use in various cyberattacks.

Impacted Technologies

VendorProductVersion(s)CPE
2007CPE matchmatch criteria
cpe:2.3:a:microsoft:office:2007:sp3:*:*:*:*:*:*
2010CPE matchmatch criteria
cpe:2.3:a:microsoft:office:2010:sp2:*:*:*:*:*:*
2013CPE matchmatch criteria
cpe:2.3:a:microsoft:office:2013:sp1:*:*:*:*:*:*
2013CPE matchmatch criteria
cpe:2.3:a:microsoft:office:2013:sp1:*:*:rt:*:*:*
2016CPE matchmatch criteria
cpe:2.3:a:microsoft:office:2016:*:*:*:*:*:x64:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
85.61%
Probability of exploitation in next 30 days
EPSS Percentile
99.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
Added to KEV · Feb 25, 2022
ExploitDB: EDB-44263 · Jan 9, 2018
This CVE's current EPSS score of 0.8561 is in the 100th percentile among its peer group of 11,615 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (9)

microsoftpatch availablevia msrc
Product: Microsoft Office 2016 (32-bit edition)
View patch
microsoftpatch availablevia msrc
Product: Microsoft Office 2016 (64-bit edition)
View patch
microsoftpatch availablevia msrc
Product: Microsoft Office 2007 Service Pack 3
View patch
microsoftpatch availablevia msrc
Product: Microsoft Office 2010 Service Pack 2 (32-bit editions)
View patch
microsoftpatch availablevia msrc
Product: Microsoft Office 2010 Service Pack 2 (64-bit editions)
View patch
microsoftpatch availablevia msrc
Product: Microsoft Office 2013 RT Service Pack 1
microsoftpatch availablevia msrc
Product: Microsoft Office 2013 Service Pack 1 (32-bit editions)
View patch
microsoftpatch availablevia msrc
Product: Microsoft Office 2013 Service Pack 1 (64-bit editions)
View patch
microsoftpatch availablevia nvd_reference
View patch

Vendor Advisories (1)

microsoft2017-Jul/CVE-2017-8570Important

Microsoft Office Remote Code Execution Vulnerability

Jul 11, 2017

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
github.com / ParsingTeam/ppsx-file-generator
ExploitThird Party Advisory
github.com / rxwx/CVE-2017-8570
Third Party Advisory
github.com / tezukanice/Office8570
ExploitThird Party Advisory
portal.msrc.microsoft.com / en-us/security-guidance/advisory/CVE-2017-8570
PatchVendor Advisory
securityfocus.com / bid/99445
Broken LinkThird Party AdvisoryVDB Entry