#VU117298 Stack-based buffer overflow in SIP IP Phone Software - CVE-2025-20350
Published: October 15, 2025
Vulnerability identifier: #VU117298
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2025-20350
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
SIP IP Phone Software
SIP IP Phone Software
Software vendor:
Cisco Systems, Inc
Cisco Systems, Inc
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error when handling HTTP packets A remote attacker can send specially crafted HTTP requests to he system, trigger a stack-based buffer overflow and perform a denial of service (DoS) attack.
Remediation
Install updates from vendor's website.