HIGH KEV
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'
Published Nov 12, 2019 ·Due May 3, 2022
7.5
HIGHCVSS 3.1
EPSS 77.29%
Description
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.
Affected products
-
- Version Windows Server 2012StatusaffectedConstraints-
- Version
-
- Version Windows 10 Version 1607 for 32-bit SystemsStatusaffectedConstraints-
- Version Windows 10 Version 1607 for x64-based SystemsStatusaffectedConstraints-
- Version Windows 10 Version 1709 for 32-bit SystemsStatusaffectedConstraints-
- Version Windows 10 Version 1709 for ARM64-based SystemsStatusaffectedConstraints-
- Version Windows 10 Version 1709 for x64-based SystemsStatusaffectedConstraints-
- Version Windows 10 Version 1803 for 32-bit SystemsStatusaffectedConstraints-
- Version Windows 10 Version 1803 for ARM64-based SystemsStatusaffectedConstraints-
- Version Windows 10 Version 1803 for x64-based SystemsStatusaffectedConstraints-
- Version Windows 10 Version 1809 for 32-bit SystemsStatusaffectedConstraints-
- Version Windows 10 Version 1809 for ARM64-based SystemsStatusaffectedConstraints-
- Version Windows 10 Version 1809 for x64-based SystemsStatusaffectedConstraints-
- Version Windows 10 for 32-bit SystemsStatusaffectedConstraints-
- Version Windows 10 for x64-based SystemsStatusaffectedConstraints-
- Version Windows 7 for 32-bit Systems Service Pack 1StatusaffectedConstraints-
- Version Windows 7 for x64-based Systems Service Pack 1StatusaffectedConstraints-
- Version Windows 8.1 for 32-bit systemsStatusaffectedConstraints-
- Version Windows 8.1 for x64-based systemsStatusaffectedConstraints-
- Version Windows RT 8.1StatusaffectedConstraints-
- Version Windows Server 2008 R2 for x64-based Systems Service Pack 1StatusaffectedConstraints-
- Version Windows Server 2012 R2StatusaffectedConstraints-
- Version Windows Server 2016StatusaffectedConstraints-
- Version Windows Server 2019StatusaffectedConstraints-
- Version
- Vendor Microsoft Product Internet Explorer 11 on Windows 10 Version 1903 for 32-bit Systems Defaultn/a
- Version unspecifiedStatusaffectedConstraints-
- Version
- Vendor Microsoft Product Internet Explorer 11 on Windows 10 Version 1903 for ARM64-based Systems Defaultn/a
- Version unspecifiedStatusaffectedConstraints-
- Version
- Vendor Microsoft Product Internet Explorer 11 on Windows 10 Version 1903 for x64-based Systems Defaultn/a
- Version unspecifiedStatusaffectedConstraints-
- Version
-
- Version unspecifiedStatusaffectedConstraints-
- Version
-
- Version Windows Server 2008 for 32-bit Systems Service Pack 2StatusaffectedConstraints-
- Version Windows Server 2008 for x64-based Systems Service Pack 2StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Internet Explorer 10 | n/a |
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Microsoft | Internet Explorer 11 | n/a |
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Microsoft | Internet Explorer 11 on Windows 10 Version 1903 for 32-bit Systems | n/a |
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Microsoft | Internet Explorer 11 on Windows 10 Version 1903 for ARM64-based Systems | n/a |
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Microsoft | Internet Explorer 11 on Windows 10 Version 1903 for x64-based Systems | n/a |
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Microsoft | Internet Explorer 11 on Windows Server 2012 | n/a |
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Microsoft | Internet Explorer 9 | n/a |
|
Configuration 1
AND
- 9
Running on/with
- n/a
Configuration 2
AND
- 10
Running on/with
- n/a
Configuration 3
AND
- 11
Running on/with
OR
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- r2
- n/a
- r2
- n/a
- n/a
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
7.5 HIGH NVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
No CVSS v3.0 score for this CVE.
7.6 HIGH NVD
AV:N/AC:H/Au:N/C:C/I:C/A:C
Access Vector Network
Access Complexity High
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
Listed in CISA KEV KEV
Date Added
Nov 3, 2021
Patch Due
May 3, 2022
Required Action
Apply updates per vendor instructions.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
ActiveAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed Feb 7, 2025 · SSVC 2.0.3
77.29% 0.77290
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
EPSS probability 0.77290
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (31 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 77.29% (0.77290) | 99.54th | v5 (v2026.06.15) |
| Sep 3, 2026 | 77.29% (0.77290) | 99.52th | v5 (v2026.06.15) |
| Jun 15, 2026 | 72.63% (0.72626) | 99.37th | v5 (v2026.06.15) |
| Jan 15, 2026 | 82.29% (0.82293) | 99.19th | v4 (v2025.03.14) |
| Dec 18, 2025 | 74.47% (0.74474) | 98.79th | v4 (v2025.03.14) |
| Nov 21, 2025 | 65.30% (0.65297) | 98.39th | v4 (v2025.03.14) |
| Nov 18, 2025 | 82.76% (0.82764) | 99.32th | v4 (v2025.03.14) |
| Oct 30, 2025 | 65.30% (0.65297) | 98.39th | v4 (v2025.03.14) |
| Sep 2, 2025 | 67.06% (0.67064) | 98.51th | v4 (v2025.03.14) |
| Mar 25, 2025 | 83.14% (0.83137) | 99.24th | v4 (v2025.03.14) |
| Mar 17, 2025 | 81.87% (0.81870) | 99.16th | v4 (v2025.03.14) |
| Dec 17, 2024 | 93.37% (0.93368) | 99.30th | v3 (v2023.03.01) |
| Dec 12, 2024 | 96.82% (0.96821) | 99.74th | v3 (v2023.03.01) |
| Jun 27, 2024 | 97.12% (0.97118) | 99.80th | v3 (v2023.03.01) |
| Oct 19, 2023 | 97.14% (0.97139) | 99.71th | v3 (v2023.03.01) |
| Jul 30, 2023 | 97.21% (0.97209) | 99.72th | v3 (v2023.03.01) |
| Jul 12, 2023 | 97.15% (0.97153) | 99.68th | v3 (v2023.03.01) |
| Jun 26, 2023 | 97.25% (0.97248) | 99.74th | v3 (v2023.03.01) |
| Jun 9, 2023 | 97.26% (0.97256) | 99.74th | v3 (v2023.03.01) |
| May 22, 2023 | 97.15% (0.97150) | 99.66th | v3 (v2023.03.01) |
| May 4, 2023 | 97.24% (0.97236) | 99.71th | v3 (v2023.03.01) |
| Apr 17, 2023 | 96.24% (0.96241) | 99.21th | v3 (v2023.03.01) |
| Apr 1, 2023 | 96.45% (0.96445) | 99.27th | v3 (v2023.03.01) |
| Mar 17, 2023 | 96.76% (0.96761) | 99.41th | v3 (v2023.03.01) |
| Mar 7, 2023 | 96.61% (0.96610) | 99.31th | v3 (v2023.03.01) |
| Mar 6, 2023 | 48.49% (0.48493) | 98.63th | v2 (v2022.01.01) |
| Apr 1, 2022 | 48.49% (0.48493) | 98.44th | v2 (v2022.01.01) |
| Feb 4, 2022 | 82.81% (0.82814) | 99.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 36.84% (0.36838) | 98.09th | v1 |
| Sep 1, 2021 | 36.84% (0.36838) | 99.14th | v1 |
| Apr 14, 2021 | 36.84% (0.36838) | 0.00th | v1 |
Weaknesses (2)
References (3)
- http://packetstormsecurity.com/files/155433/Microsoft-Internet-Explorer-Use-After-Free.html x_refsource_MISCExploitThird Party AdvisoryVDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1429 x_refsource_MISCPatchVendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-1429 government-resourceUS Government Resource
| Link | Providers | Tags |
|---|---|---|
| http://packetstormsecurity.com/files/155433/Microsoft-Internet-Explorer-Use-After-Free.html | x_refsource_MISCExploitThird Party AdvisoryVDB Entry | |
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1429 | x_refsource_MISCPatchVendor Advisory | |
| https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-1429 | government-resourceUS Government Resource |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner microsoft
Published Nov 12, 2019
Updated Jan 12, 2026
Reserved Nov 26, 2018
Link CVE-2019-1429
CISA Vulnrichment
Updated Feb 7, 2025