#VU65842 Out-of-bounds write in Asuswrt-Merlin New Gen - CVE-2022-26376

Vulnerability identifier: #VU65842

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-26376

CWE-ID: CWE-787

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Asuswrt-Merlin New Gen
Other software / Other software solutions

Vendor: Eric Sauvageau

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error in the httpd unescape functionality. A remote attacker can trigger out-of-bounds write and execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Asuswrt-Merlin New Gen: 386.6

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External links
https://www.talosintelligence.com/vulnerability_reports/TALOS-2022-1511

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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.