CVE-2019-1429 : A remote code execution vulnerability exists in the way that the scripting engin

A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka 'Scripting Engine Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2019-1426, CVE-2019-1427, CVE-2019-1428.

Published 2019-11-12 19:15:15

Updated 2025-03-13 17:14:12

Source Microsoft Corporation

View at NVD, CVE.org

Vulnerability category: Memory CorruptionExecute code

Products affected by CVE-2019-1429

Microsoft » Internet Explorer » Version: 9
cpe:2.3:a:microsoft:internet_explorer:9:*:*:*:*:*:*:*
Matching versions
When used together with: Microsoft » Windows Server 2008 » Version: N/A Update SP2
Microsoft » Internet Explorer » Version: 10
cpe:2.3:a:microsoft:internet_explorer:10:*:*:*:*:*:*:*
Matching versions
When used together with: Microsoft » Windows Server 2012 » Version: N/A
Microsoft » Internet Explorer » Version: 11
cpe:2.3:a:microsoft:internet_explorer:11:-:*:*:*:*:*:*
Matching versions
When used together with: Microsoft » Windows 10 1507 » Version: N/A
When used together with: Microsoft » Windows 10 1607 » Version: N/A
When used together with: Microsoft » Windows 10 1709 » Version: N/A
When used together with: Microsoft » Windows 10 1803 » Version: N/A
When used together with: Microsoft » Windows 10 1809 » Version: N/A
When used together with: Microsoft » Windows 10 1903 » Version: N/A
When used together with: Microsoft » Windows 7 » Version: N/A Update SP1
When used together with: Microsoft » Windows 8.1 » Version: N/A
When used together with: Microsoft » Windows Rt 8.1 » Version: N/A
When used together with: Microsoft » Windows Server 2008 » Version: N/A Update SP2
When used together with: Microsoft » Windows Server 2008 » Version: R2 Update SP1 For X64
When used together with: Microsoft » Windows Server 2012 » Version: N/A
When used together with: Microsoft » Windows Server 2012 » Version: R2
When used together with: Microsoft » Windows Server 2016 » Version: N/A
When used together with: Microsoft » Windows Server 2019 » Version: N/A

CVE-2019-1429 is in the CISA Known Exploited Vulnerabilities Catalog

CISA vulnerability name:

Microsoft Internet Explorer Scripting Engine Memory Corruption Vulnerability

CISA required action:

Apply updates per vendor instructions.

CISA description:

Microsoft Internet Explorer contains a memory corruption vulnerability which can allow for remote code execution in the context of the current user.

Notes:

https://nvd.nist.gov/vuln/detail/CVE-2019-1429

Added on 2021-11-03 Action due date 2022-05-03

Exploit prediction scoring system (EPSS) score for CVE-2019-1429

EPSS FAQ

83.14%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 99 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2019-1429

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.6	HIGH	AV:N/AC:H/Au:N/C:C/I:C/A:C	4.9	10.0	NIST
Access Vector: Network Access Complexity: High Authentication: None Confidentiality Impact: Complete Integrity Impact: Complete Availability Impact: Complete
7.5	HIGH	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H	1.6	5.9	NIST
Attack Vector: Network Attack Complexity: High Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2019-1429

CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Assigned by: nvd@nist.gov (Primary)
CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2019-1429

http://packetstormsecurity.com/files/155433/Microsoft-Internet-Explorer-Use-After-Free.html

Microsoft Internet Explorer Use-After-Free ≈ Packet Storm
Exploit;Third Party Advisory;VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1429

CVE-2019-1429 | Scripting Engine Memory Corruption Vulnerability
Patch;Vendor Advisory