Scripting Engine Memory Corruption Vulnerability
Description
A remote code execution vulnerability exists in the way that the ChakraCore scripting engine handles objects in memory. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. The security update addresses the vulnerability by modifying how the ChakraCore scripting engine handles objects in memory.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
ChakraCore scripting engine object-handling flaw allows remote code execution via memory corruption.
Vulnerability
CVE-2020-1180 is a remote code execution vulnerability in the ChakraCore scripting engine. The root cause is improper handling of objects in memory, which can lead to memory corruption when the engine processes specially crafted content [1][2].
Exploitation
An attacker could exploit this vulnerability by hosting a specially crafted website (or leveraging a compromised site that accepts user content) and convincing a user to visit it. No special authentication is required; the attacker only needs the user to browse to the malicious content. The vulnerability exists in ChakraCore, the open-source component of Microsoft Edge (legacy) and other applications using this engine [1][2].
Impact
Successful exploitation grants the attacker arbitrary code execution in the context of the current user. If the user has administrative rights, the attacker can take full control of the system: install programs, view/change/delete data, or create new accounts with full user rights [2].
Mitigation
Microsoft released a security update on September 8, 2020, which addresses this vulnerability by modifying how ChakraCore handles objects in memory. The corresponding pull request on GitHub (PR #6500) details the code changes [1][2]. Users and administrators should apply the update promptly.
AI Insight generated on May 21, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
Microsoft.ChakraCoreNuGet | < 1.11.22 | 1.11.22 |
Affected products
2Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
4- github.com/advisories/GHSA-wc43-7wj6-4ggrghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2020-1180ghsaADVISORY
- github.com/microsoft/ChakraCore/pull/6500ghsaWEB
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1180ghsax_refsource_MISCWEB
News mentions
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