CVE-2017-8521

Name: CVE-2017-8521
Creator: NVD / NIST
Published: 2017-06-15T01:29:04.133+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 6.23%

Last modified Jun 17, 2026

CVE-2017-8521 is a vulnerability of currently unknown severity. Microsoft Edge in Windows 10 1703 allows an attacker to execute arbitrary code in the context of the current user when the Edge JavaScript scripting engine fails to handle objects in memory, aka "Scripting Engine Memory Corruption Vulnerability". This CVE ID is unique from CVE-2017-8499, CVE-2017-8520, CVE-2017-8548, and CVE-2017-8549.. EPSS estimates a 6.23% chance of exploitation in the next 30 days.

Description

Microsoft Edge in Windows 10 1703 allows an attacker to execute arbitrary code in the context of the current user when the Edge JavaScript scripting engine fails to handle objects in memory, aka "Scripting Engine Memory Corruption Vulnerability". This CVE ID is unique from CVE-2017-8499, CVE-2017-8520, CVE-2017-8548, and CVE-2017-8549.

Metrics

EPSS Probability

6.23%

92.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Microsoft	Edge	All versions

References

http://www.securityfocus.com/bid/98925Third Party Advisory, VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8521Patch, Vendor Advisory
http://www.securityfocus.com/bid/98925Third Party Advisory, VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8521Patch, Vendor Advisory

Timeline

Published: Jun 15, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-8521?

How severe is CVE-2017-8521?

Severity scoring for CVE-2017-8521 is pending analysis. The EPSS model estimates a 6.23% probability of exploitation in the next 30 days.

How do I fix CVE-2017-8521?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-8521?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST