Memory corruption in Microsoft Edge - CVE-2017-8634

Vulnerability identifier: #VU7712

CSH Severity: High

CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2017-8634

CWE-ID: CWE-119

Exploitation vector: Remote access

Exploit availability: Public exploit is available

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists due to an error when handling objects in memory by Microsoft browser JavaScript engines. A remote attacker can create a specially crafted website, trick the victim into visiting it, trigger memory corruption and execute arbitrary code with system privileges.

Successful exploitation of the vulnerability may result in system compromise.

Microsoft Edge

Install updates from vendor's website.

• Exploit #1274 - Microsoft Edge Chakra - 'JavascriptArray::ConcatArgs' Type Confusion (March 18, 2020)

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8634

• Multiple vulnerabilities in Microsoft Edge