CVE-2023-20250: cisco cisco small business rv series router firmware Stack-based Buffer Overflow

Vulnerability summary

CVE-2023-20250 is a high (CVSS 7.2) Stack-based Buffer Overflow vulnerability in cisco cisco small business rv series router firmware. EPSS estimates a 0.95% chance of exploitation in the next 30 days, higher than 60.8% of scored vulnerabilities.

Timeline

1. 06-09-2023
   PublishedVulnerability first disclosed.
2. 16-12-2025
   Last modifiedVulnerability information updated.

Description

A vulnerability in the web-based management interface of Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers could allow an authenticated, remote attacker to execute arbitrary code on an affected device. This vulnerability is due to improper validation of requests that are sent to the web-based management interface. An attacker could exploit this vulnerability by sending a crafted request to the web-based management interface. A successful exploit could allow the attacker to execute arbitrary code with root privileges on an affected device. To exploit this vulnerability, the attacker must have valid Administrator credentials on the affected device.

• CWE-121Stack-based Buffer OverflowA stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
• CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.