#VU79883 Improper Restriction of Rendered UI Layers or Frames in ZyXEL Communications Corp. products - CVE-2023-28768

Vulnerability identifier: #VU79883

Vulnerability risk: Low

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

CVE-ID: CVE-2023-28768

CWE-ID: CWE-1021

Exploitation vector: Adjecent network

Exploit availability: No public exploit available

Vulnerable software:
XGS2220-30
XGS2220-30F
XGS2220-30HP
XGS2220-54
XGS2220-54FP
XGS2220-54HP
XMG1930-30
XMG1930-30HP
XS1930-10
XS1930-12F
XS1930-12HP

Software vendor:
ZyXEL Communications Corp.

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper frame handling. A remote attacker on the local network can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Install updates from vendor's website.

• https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-dos-vulnerability-of-xgs2220-xmg1930-and-xs1930-series-switches