CVE-2019-1300

Name: CVE-2019-1300
Creator: NVD / NIST
Published: 2019-09-11T22:15:18.96+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 8.11%

Last modified Jun 17, 2026

CVE-2019-1300 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge, aka 'Chakra Scripting Engine Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2019-1138, CVE-2019-1217, CVE-2019-1237, CVE-2019-1298.. EPSS estimates a 8.11% chance of exploitation in the next 30 days.

Description

A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge, aka 'Chakra Scripting Engine Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2019-1138, CVE-2019-1217, CVE-2019-1237, CVE-2019-1298.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

8.11%

94.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Microsoft	Edge	All versions
Microsoft	Chakracore	< 1.11.13

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1300Patch, Vendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1300Patch, Vendor Advisory

Timeline

Published: Sep 11, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-1300?

How severe is CVE-2019-1300?

CVE-2019-1300 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 8.11% probability of exploitation in the next 30 days.

How do I fix CVE-2019-1300?

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-2019-1300?

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

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Source: NVD / NIST