#VU7716 Memory corruption in Microsoft Edge - CVE-2017-8638

Vulnerability identifier: #VU7716

Vulnerability risk: High

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:L/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2017-8638

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Microsoft Edge
Client/Desktop applications / Web browsers

Vendor: Microsoft

Description
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.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Microsoft Edge: All versions

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External links
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8638

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.