Actively exploited in the wild. Patch or mitigate immediately — don't wait for a maintenance window.
An unauthenticated attacker, remotely over the network, if a user is tricked into opening a malicious file or link, can tamper with data.
Internet Explorer Memory Corruption Vulnerability
Inferred from the weakness type (CWE) and how the flaw is reached — the techniques an attacker would chain to exploit this. Real-world corroboration appears here as threat intel is folded in.
Corroborated threat activity referencing this CVE — with source and confidence, not inference.
Named threat actors and observed ATT&CK techniques appear here as intel feeds are folded in — the ATT&CK chain above stays inferred until then.
Generated by Wavense from the CVE record — an immediate mitigation and the permanent fix.
Minimize or disable Internet Explorer usage for general browsing, especially on untrusted websites, favoring alternative modern browsers. Implement strong network filtering to block access to known malicious domains and ensure robust endpoint detection and response (EDR) solutions are configured to monitor for suspicious IE process behavior. Configure Internet Explorer's security zones to restrict active content from untrusted sources.
Apply the official security update provided by Microsoft (e.g., KB5000802 or later) for affected versions of Internet Explorer and Windows. The permanent fix involves patching the underlying scripting engine vulnerability, making it critical to ensure all relevant systems are updated promptly to eliminate the risk of exploitation. Organizations should prioritize migrating away from Internet Explorer to modern, actively supported browsers with enhanced security architectures.
An attacker could exploit this vulnerability by enticing a user to visit a specially crafted malicious website or open a malicious file. Successful exploitation allows the attacker to execute arbitrary code in the context of the current user, potentially leading to full system compromise, data exfiltration, or further network penetration. This poses a significant risk to the confidentiality, integrity, and availability of affected systems.
Other CVEs affecting edge
Use-after-free vulnerability in Adobe Flash Player before 13.0.0.269 and 14.x through 16.x before 16.0.0.305 on Windows and OS X and before 11.2.202.442 on Linux allows remote attackers to execute arbitrary code via unspecified vectors, as exploited in the wild in February 2015, a different vulnerability than CVE-2015-0315, CVE-2015-0320, and CVE-2015-0322.
Unspecified vulnerability in Adobe Flash Player through 13.0.0.262 and 14.x, 15.x, and 16.x through 16.0.0.287 on Windows and OS X and through 11.2.202.438 on Linux allows remote attackers to execute arbitrary code via unknown vectors, as exploited in the wild in January 2015.
Use-after-free vulnerability in Microsoft Internet Explorer 6 through 11 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via vectors related to the CMarkup::IsConnectedToPrimaryMarkup function, as exploited in the wild in April 2014. NOTE: this issue originally emphasized VGX.DLL, but Microsoft clarified that "VGX.DLL does not contain the vulnerable code leveraged in this exploit. Disabling VGX.DLL is an exploit-specific workaround that provides an immediate, effective workaround to help block known attacks."
Type confusion in V8 in Google Chrome prior to 128.0.6613.84 allowed a remote attacker to exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
Heap buffer overflow in GPU in Google Chrome prior to 107.0.5304.121 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)