HIGH
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
Published Nov 14, 2018
7.5
HIGHCVSS 3.0
EPSS 14.16%
Description
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-2018-8541, CVE-2018-8542, CVE-2018-8551, CVE-2018-8555, CVE-2018-8556, CVE-2018-8557, CVE-2018-8588.
Affected products
-
- Version ChakraCoreStatusaffectedConstraints-
- Version
-
- Version Windows 10 Version 1607 for 32-bit SystemsStatusaffectedConstraints-
- Version Windows 10 Version 1607 for x64-based SystemsStatusaffectedConstraints-
- Version Windows 10 Version 1703 for 32-bit SystemsStatusaffectedConstraints-
- Version Windows 10 Version 1703 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 Server 2016StatusaffectedConstraints-
- Version Windows Server 2019StatusaffectedConstraints-
- 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 | ChakraCore | n/a |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Microsoft | Microsoft Edge | n/a |
|
Configuration 1
- n/a
Configuration 2
AND
Running on/with
OR
- n/a
- 1607
- 1703
- 1709
- 1803
- 1809
- 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.
No CVSS v3.1 score for this CVE.
7.5 HIGH NVD
CVSS:3.0/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
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
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
14.16% 0.14159
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.14159
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (34 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 14.16% (0.14159) | 96.47th | v5 (v2026.06.15) |
| Jun 15, 2026 | 14.16% (0.14159) | 96.10th | v5 (v2026.06.15) |
| Apr 4, 2026 | 18.75% (0.18745) | 95.27th | v4 (v2025.03.14) |
| Mar 8, 2026 | 14.61% (0.14606) | 94.34th | v4 (v2025.03.14) |
| Nov 21, 2025 | 9.84% (0.09841) | 92.67th | v4 (v2025.03.14) |
| Nov 18, 2025 | 13.00% (0.13005) | 93.43th | v4 (v2025.03.14) |
| Nov 8, 2025 | 9.84% (0.09841) | 92.65th | v4 (v2025.03.14) |
| Mar 30, 2025 | 5.51% (0.05508) | 89.26th | v4 (v2025.03.14) |
| Mar 29, 2025 | 37.00% (0.37005) | 95.64th | v4 (v2025.03.14) |
| Mar 17, 2025 | 5.51% (0.05508) | 89.53th | v4 (v2025.03.14) |
| Dec 17, 2024 | 64.17% (0.64167) | 98.03th | v3 (v2023.03.01) |
| Oct 24, 2024 | 8.35% (0.08351) | 94.55th | v3 (v2023.03.01) |
| Jul 3, 2024 | 9.58% (0.09577) | 94.83th | v3 (v2023.03.01) |
| Apr 27, 2024 | 9.96% (0.09960) | 94.78th | v3 (v2023.03.01) |
| Apr 6, 2024 | 7.80% (0.07804) | 94.10th | v3 (v2023.03.01) |
| Feb 23, 2024 | 8.67% (0.08673) | 94.31th | v3 (v2023.03.01) |
| Nov 7, 2023 | 7.77% (0.07768) | 93.50th | v3 (v2023.03.01) |
| Oct 5, 2023 | 7.71% (0.07710) | 93.40th | v3 (v2023.03.01) |
| Sep 3, 2023 | 9.84% (0.09842) | 94.09th | v3 (v2023.03.01) |
| Sep 2, 2023 | 7.24% (0.07240) | 93.18th | v3 (v2023.03.01) |
| Jul 8, 2023 | 6.90% (0.06899) | 92.96th | v3 (v2023.03.01) |
| Jul 7, 2023 | 4.32% (0.04318) | 91.11th | v3 (v2023.03.01) |
| Jun 9, 2023 | 4.63% (0.04632) | 91.37th | v3 (v2023.03.01) |
| Mar 7, 2023 | 3.38% (0.03377) | 89.91th | v3 (v2023.03.01) |
| Mar 6, 2023 | 34.60% (0.34599) | 97.77th | v2 (v2022.01.01) |
| Dec 14, 2022 | 32.42% (0.32419) | 97.57th | v2 (v2022.01.01) |
| Oct 30, 2022 | 31.10% (0.31104) | 97.49th | v2 (v2022.01.01) |
| Sep 26, 2022 | 27.14% (0.27139) | 97.06th | v2 (v2022.01.01) |
| Aug 20, 2022 | 23.10% (0.23099) | 96.51th | v2 (v2022.01.01) |
| May 10, 2022 | 21.36% (0.21361) | 96.31th | v2 (v2022.01.01) |
| May 9, 2022 | 17.27% (0.17269) | 95.93th | v2 (v2022.01.01) |
| Feb 4, 2022 | 17.27% (0.17269) | 93.17th | v2 (v2022.01.01) |
| Feb 3, 2022 | 14.80% (0.14798) | 89.93th | v5 (v2026.06.15) |
| Apr 14, 2021 | 14.80% (0.14798) | 0.00th | v1 |
Weaknesses (1)
References (9)
- http://www.securityfocus.com/bid/105846 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1042107 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://github.com/advisories/GHSA-h9cr-2hcf-cg8p Advisory
- https://github.com/chakra-core/ChakraCore/commit/ef75eace57c0754428699485f10970ca0fb7a54d
- https://github.com/chakra-core/ChakraCore/pull/5827
- https://nvd.nist.gov/vuln/detail/CVE-2018-8543
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8543 x_refsource_CONFIRMPatchVendor Advisory
- https://web.archive.org/web/20210730063716/http://www.securityfocus.com/bid/105846
- https://web.archive.org/web/20211126224439/http://www.securitytracker.com/id/1042107
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/105846 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1042107 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://github.com/advisories/GHSA-h9cr-2hcf-cg8p | Advisory | |
| https://github.com/chakra-core/ChakraCore/commit/ef75eace57c0754428699485f10970ca0fb7a54d | ||
| https://github.com/chakra-core/ChakraCore/pull/5827 | ||
| https://nvd.nist.gov/vuln/detail/CVE-2018-8543 | ||
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8543 | x_refsource_CONFIRMPatchVendor Advisory | |
| https://web.archive.org/web/20210730063716/http://www.securityfocus.com/bid/105846 | ||
| https://web.archive.org/web/20211126224439/http://www.securitytracker.com/id/1042107 |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner microsoft
Published Nov 14, 2018
Updated Aug 5, 2024
Reserved Mar 14, 2018
Link CVE-2018-8543
CISA Vulnrichment
GHSA-H9CR-2HCF-CG8P Updated n/a