Buffer overflow in Microsoft Edge

1) Out-of-bounds write

EUVDB-ID: #VU86050

Risk: Medium

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-36409

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to a boundary error when processing untrusted input. A remote attacker can trick the victim to visit a specially crafted website, trigger an out-of-bounds write and write to enclave memory from a host application, which can leak memory contents of the enclave.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Microsoft Edge: before 118.0.2088.46

CPE2.3

• cpe:2.3:a:microsoft:edge:*:*:*:*:*:*:*:*

External links

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36409

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website.

Is there known malware, which exploits this vulnerability?

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