CVE-2019-0539
ChakraCore RCE Vulnerability
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 affects Microsoft Edge, ChakraCore. This CVE ID is unique from CVE-2019-0567, CVE-2019-0568.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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 affects Microsoft Edge, ChakraCore. This CVE ID is unique from CVE-2019-0567, CVE-2019-0568.
- Record
CVE-2019-0539- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.6 High
AV:N/AC:H/Au:N/C:C/I:C/A:C - Weakness
- CWE-787
- Updated
- 2026-11-02
CVE List No score
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 affects Microsoft Edge, ChakraCore. This CVE ID is unique from CVE-2019-0567, CVE-2019-0568.
- Record
CVE-2019-0539- Updated
- 2026-11-02
EUVDEUVD-2022-2251 No score
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 affects Microsoft Edge, ChakraCore. This CVE ID is unique from CVE-2019-0567, CVE-2019-0568.
- Record
EUVD-2022-2251- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-3w4v-qfqc-3433
ChakraCore RCE Vulnerability
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 affects Microsoft Edge, ChakraCore. This CVE ID is unique from CVE-2019-0567, CVE-2019-0568.
- Record
GHSA-3w4v-qfqc-3433- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
OSVGHSA-3w4v-qfqc-3433
ChakraCore RCE Vulnerability
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 affects Microsoft Edge, ChakraCore. This CVE ID is unique from CVE-2019-0567, CVE-2019-0568.
- Record
GHSA-3w4v-qfqc-3433- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
Microsoft.ChakraCoreNuGet |
before 1.11.5 | 1.11.5 |
Microsoft.ChakraCoreNuGet |
before 1.11.5, plus listed versions 1.10.01.10.11.10.21.11.01.11.1 Show 36 moreShow less1.11.21.11.31.11.41.2.01.2.11.2.21.2.31.2.6.62716-preview1.3.01.3.11.3.21.4.01.4.11.4.21.4.31.4.41.4.51.5.01.5.11.5.21.5.31.6.01.6.21.7.01.7.11.7.21.7.31.7.41.7.51.7.61.8.01.8.11.8.21.8.31.8.41.8.5 |
1.11.5 |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Microsoft Edge Chakra - 'NewScObjectNoCtor' or 'InitProto' Type Confusion | 2019-01-18 |
| Exploit-DB | Microsoft Edge Chakra - 'InitClass' Type Confusion | 2019-01-18 |
| Exploit-DB | Microsoft Edge Chakra 1.11.4 - Read Permission via Type Confusion | 2019-03-04 |
| PoC in GitHub | 0x43434343/CVE-2019-0539 | 2019-07-12 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD, OSV, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-0539 is a high vulnerability (CVSS 7.5) in Microsoft Chakracore, published January 8, 2019. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 82.9%, the 99th percentile. Fixed in Microsoft.ChakraCore 1.11.5.