CVE-2017-0203

Name: CVE-2017-0203
Creator: NVD / NIST
Published: 2017-04-12T14:59:01.267+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 3.92%

Last modified Jun 17, 2026

CVE-2017-0203 is a vulnerability of currently unknown severity. A vulnerability exists in Microsoft Edge when the Edge Content Security Policy (CSP) fails to properly validate certain specially crafted documents. An attacker could trick a user into loading a web page with malicious content, aka "Microsoft Edge Security Feature Bypass Vulnerability.". EPSS estimates a 3.92% chance of exploitation in the next 30 days.

Description

A vulnerability exists in Microsoft Edge when the Edge Content Security Policy (CSP) fails to properly validate certain specially crafted documents. An attacker could trick a user into loading a web page with malicious content, aka "Microsoft Edge Security Feature Bypass Vulnerability."

Metrics

EPSS Probability

3.92%

89.0th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Microsoft	Edge	All versions

References

http://www.securityfocus.com/bid/97443Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1038234
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0203Patch, Vendor Advisory
http://www.securityfocus.com/bid/97443Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1038234
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0203Patch, Vendor Advisory

Timeline

Published: Apr 12, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-0203?

How severe is CVE-2017-0203?

Severity scoring for CVE-2017-0203 is pending analysis. The EPSS model estimates a 3.92% probability of exploitation in the next 30 days.

How do I fix CVE-2017-0203?

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-2017-0203?

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

Scan your code now

Source: NVD / NIST