Vulnerability identifier: #VU9284

Vulnerability risk: Low

CVSSv3.1: 5.5 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-11874

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

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

Vendor: Microsoft

Description
The vulnerability allows a remote authenticated attacker to bypass security restrictions on the target system.

The vulnerability exists due to how memory is accessed in code compiled by the Edge Just-In-Time (JIT) compiler. A remote attacker can browse to a malicious website, bypass Control Flow Guard (CFG) and perform further attacks.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Microsoft Edge:

---

External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11874

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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