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CVE-2017-8634

73
FAUCET Score

CVE-2017-8634 is a scripting engine memory corruption vulnerability in Microsoft Edge on Windows 10 1703, allowing remote code execution in the context of the current user. With a CVSS score of 7.5 (High), exploitation requires user interaction and a high attack complexity, but can lead to full compromise of confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, public exploit code exists (EDB-42474) and it has a high EPSS score, indicating a significant likelihood of exploitation. Community discussion and media coverage are limited, but the FAUCET Risk Score of 99/100 suggests a critical risk.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:microsoft:edge:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.6
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
70.28%
Probability of exploitation in next 30 days
EPSS Percentile
99.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-42474 · Aug 17, 2017
This CVE's current EPSS score of 0.7028 is in the 98th percentile among its peer group of 1,572 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.4 Bluesky, 0.2 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.6 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

microsoftpatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1703 for 32-bit Systems
View patch
microsoftpatch availablevia msrc
Product: Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1703 for x64-based Systems
View patch
microsoftpatch availablevia msrc
Product: 10724-10951
View patch
microsoftpatch availablevia msrc
Product: 10724-10952
View patch

Vendor Advisories (1)

microsoft2017-Aug/CVE-2017-8634Critical

Scripting Engine Memory Corruption Vulnerability

Aug 8, 2017

References

portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2017-8634
PatchVendor Advisory
exploit-db.com / exploits/42474
ExploitThird Party AdvisoryVDB Entry
securityfocus.com / bid/100043
Third Party AdvisoryVDB Entry
securitytracker.com / id/1039095
Third Party AdvisoryVDB Entry