CVE-2019-1023
Microsoft Edge Scripting Engine Information Disclosure Vulnerability
Description
An information disclosure vulnerability exists when the scripting engine does not properly handle objects in memory in Microsoft Edge. An attacker who successfully exploited the vulnerability could obtain information to further compromise the user’s system. In a web-based attack scenario, an attacker could host a website in an attempt to exploit the vulnerability. In addition, compromised websites and websites that accept or host user-provided content could contain specially crafted content that could exploit the vulnerability. However, in all cases an attacker would have no way to force a user to view the attacker-controlled content. Instead, an attacker would have to convince a user to take action. For example, an attacker could trick a user into clicking a link that takes the user to the attacker's site. The security update addresses the vulnerability by changing how the scripting engine handles objects in memory.
INFO
Published Date :
June 12, 2019, 2:29 p.m.
Last Modified :
May 20, 2025, 6:15 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
2.8
Public PoC/Exploit Available at Github
CVE-2019-1023 has a 3 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2019-1023
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2019-1023.
| URL | Resource |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2019-1023 | |
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1023 | Patch Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Repository for "Fuzzing JavaScript Engines with Aspect-preserving Mutation" (in S&P'20).
Shell Python TypeScript JavaScript Makefile C PLpgSQL HTML C++
None
Shell Python TypeScript JavaScript Makefile C C++ PLpgSQL HTML
Fuzzing JavaScript Engines with Aspect-preserving Mutation
Shell Python TypeScript Makefile C C++ PLpgSQL HTML JavaScript
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2019-1023 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-1023 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 20, 2025
Action Type Old Value New Value Changed Description An information disclosure vulnerability exists when the scripting engine does not properly handle objects in memory in Microsoft Edge, aka 'Scripting Engine Information Disclosure Vulnerability'. This CVE ID is unique from CVE-2019-0990. An information disclosure vulnerability exists when the scripting engine does not properly handle objects in memory in Microsoft Edge. An attacker who successfully exploited the vulnerability could obtain information to further compromise the user’s system. In a web-based attack scenario, an attacker could host a website in an attempt to exploit the vulnerability. In addition, compromised websites and websites that accept or host user-provided content could contain specially crafted content that could exploit the vulnerability. However, in all cases an attacker would have no way to force a user to view the attacker-controlled content. Instead, an attacker would have to convince a user to take action. For example, an attacker could trick a user into clicking a link that takes the user to the attacker's site. The security update addresses the vulnerability by changing how the scripting engine handles objects in memory. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Added Reference https://msrc.microsoft.com/update-guide/vulnerability/CVE-2019-1023 Removed Reference https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1023 Removed Reference Type https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1023 Types: Patch, Vendor Advisory -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1023 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Jun. 13, 2019
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 (AV:N/AC:M/Au:N/C:P/I:N/A:N) Added CVSS V3 AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Changed Reference Type https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1023 No Types Assigned https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1023 Patch, Vendor Advisory Added CWE CWE-200 Added CPE Configuration OR *cpe:2.3:a:microsoft:chakracore:*:*:*:*:*:*:*:* versions up to (excluding) 1.11.10 Added CPE Configuration AND OR *cpe:2.3:a:microsoft:edge:-:*:*:*:*:*:*:* OR cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10:1703:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-1023 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2019-1023
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
10.58 }} 1.44%
score
0.92867
percentile