CVE-2019-1307
Out-of-bounds write
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-2019-1308, CVE-2019-1335, CVE-2019-1366.
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 CVE ID is unique from CVE-2019-1308, CVE-2019-1335, CVE-2019-1366.
- Record
CVE-2019-1307- CVSS 3.1
- 7.5 High
CVSS:3.1/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 CVE ID is unique from CVE-2019-1308, CVE-2019-1335, CVE-2019-1366.
- Record
CVE-2019-1307- Updated
- 2026-11-02
EUVDEUVD-2021-0618 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 CVE ID is unique from CVE-2019-1308, CVE-2019-1335, CVE-2019-1366.
- Record
EUVD-2021-0618- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-6j89-jhpr-849f
Out-of-bounds write
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-2019-1308, CVE-2019-1335, CVE-2019-1366.
- Record
GHSA-6j89-jhpr-849f- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
OSV
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-2019-1308, CVE-2019-1335, CVE-2019-1366.
- Record
CVE-2019-1307- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVGHSA-6j89-jhpr-849f
Out-of-bounds write
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-2019-1308, CVE-2019-1335, CVE-2019-1366.
- Record
GHSA-6j89-jhpr-849f- CVSS 3.1
- 7.5 High
CVSS:3.1/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
- microsoft edge
- microsoft chakracore
- microsoft edge (edgehtml-based) on windows 10 for 32-bit systems
- microsoft edge (edgehtml-based) on windows 10 for x64-based systems
- microsoft edge (edgehtml-based) on windows 10 version 1607 for 32-bit systems
- microsoft edge (edgehtml-based) on windows 10 version 1607 for x64-based systems
- microsoft edge (edgehtml-based) on windows 10 version 1703 for 32-bit systems
- microsoft edge (edgehtml-based) on windows 10 version 1703 for x64-based systems
- microsoft edge (edgehtml-based) on windows 10 version 1709 for 32-bit systems
- microsoft edge (edgehtml-based) on windows 10 version 1709 for arm64-based systems
- microsoft edge (edgehtml-based) on windows 10 version 1709 for x64-based systems
- microsoft edge (edgehtml-based) on windows 10 version 1803 for 32-bit systems
Show 10 moreShow less
- microsoft edge (edgehtml-based) on windows 10 version 1803 for arm64-based systems
- microsoft edge (edgehtml-based) on windows 10 version 1803 for x64-based systems
- microsoft edge (edgehtml-based) on windows 10 version 1809 for 32-bit systems
- microsoft edge (edgehtml-based) on windows 10 version 1809 for arm64-based systems
- microsoft edge (edgehtml-based) on windows 10 version 1809 for x64-based systems
- microsoft edge (edgehtml-based) on windows 10 version 1903 for 32-bit systems
- microsoft edge (edgehtml-based) on windows 10 version 1903 for arm64-based systems
- microsoft edge (edgehtml-based) on windows 10 version 1903 for x64-based systems
- microsoft edge (edgehtml-based) on windows server 2016
- microsoft edge (edgehtml-based) on windows server 2019
Affected packages
| Package | Affected | Fixed |
|---|---|---|
Microsoft.ChakraCoreNuGet |
before 1.11.14 | 1.11.14 |
Microsoft.ChakraCoreNuGet |
before 1.11.14, plus listed versions 1.10.01.10.11.10.21.11.01.11.1 Show 45 moreShow less1.11.101.11.111.11.121.11.131.11.21.11.31.11.41.11.51.11.61.11.71.11.81.11.91.2.01.2.11.2.21.2.31.2.6.62716-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 |
1.11.14 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-1307 is a high vulnerability (CVSS 7.5) in Microsoft Edge, published October 10, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 10.1%, the 95th percentile. Fixed in Microsoft.ChakraCore 1.11.14.
References
portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1307
nvd.nist.gov/vuln/detail/CVE-2019-1307
github.com/chakra-core/ChakraCore/commit/3fe5e24694729966a157dc613f5586a6c75f1e9b