CVE-2018-8288 in Internet Explorer
Summary
by MITRE
A remote code execution vulnerability exists in the way the scripting engine handles objects in memory in Microsoft browsers, aka "Scripting Engine Memory Corruption Vulnerability." This affects ChakraCore, Internet Explorer 11, Microsoft Edge. This CVE ID is unique from CVE-2018-8242, CVE-2018-8283, CVE-2018-8287, CVE-2018-8291, CVE-2018-8296, CVE-2018-8298.
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Analysis
by VulDB Data Team • 09/10/2025
This vulnerability represents a critical memory corruption flaw within Microsoft's scripting engine that affects multiple browser environments including Internet Explorer 11, Microsoft Edge, and ChakraCore JavaScript engine. The issue stems from improper handling of objects in memory during script execution, creating a pathway for remote code execution attacks. The vulnerability specifically targets the way the scripting engine manages memory allocation and object references, allowing attackers to manipulate memory structures through carefully crafted malicious scripts. This type of vulnerability falls under the CWE-121 category of stack-based buffer overflow, though the specific manifestation involves heap corruption and memory management flaws that can be exploited remotely without user interaction.
The technical exploitation of this vulnerability occurs when malicious JavaScript code is executed within a targeted browser environment, triggering a memory corruption state that allows attackers to overwrite critical memory locations. Attackers can leverage this flaw by crafting specially designed web pages or scripts that, when loaded in vulnerable browsers, cause the scripting engine to improperly handle object references and memory allocation. The memory corruption enables attackers to execute arbitrary code with the privileges of the compromised browser process, potentially leading to full system compromise. This vulnerability demonstrates characteristics consistent with the ATT&CK technique T1059.007 for command and scripting interpreter, where adversaries use scripting languages to deliver malicious payloads.
The operational impact of this vulnerability extends across multiple Microsoft browser platforms, making it particularly dangerous as attackers can target users across different environments with a single exploit. The vulnerability affects both desktop and mobile browser environments, with Internet Explorer 11 and Microsoft Edge being primary targets due to their widespread use and the specific memory management patterns in these engines. ChakraCore, which powers Microsoft Edge and Node.js environments, is equally vulnerable, creating a broader attack surface that extends beyond traditional browser usage. The remote nature of the exploit means that users can be compromised simply by visiting malicious websites or opening specially crafted emails with embedded malicious content.
Mitigation strategies for this vulnerability should include immediate deployment of Microsoft security updates and patches, which address the underlying memory management issues in the scripting engine. Organizations should implement browser hardening measures such as disabling unnecessary scripting capabilities, implementing content security policies, and using sandboxing techniques to limit the impact of potential exploitation. Network-based protections such as web application firewalls and intrusion detection systems can help detect and block exploitation attempts targeting this vulnerability. Additionally, user education and awareness programs should emphasize the importance of keeping browsers updated and avoiding suspicious websites or email attachments. The vulnerability highlights the critical importance of regular security updates and proper memory management practices in preventing remote code execution attacks that can lead to complete system compromise.