SEPTEMBER 23, 2026
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Case File

CVE-2023-20126

CRITICAL · CVSS 9.8 EPSS 36.68% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2023-05-04 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. It affects Cisco. Public exploit code or proof-of-concept references have been detected in its references. Its EPSS score suggests a 36.7% probability of exploitation in the next 30 days. It may be remotely exploitable.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2023-20126
Severity
CRITICAL
CVSS
9.8
EPSS
36.68%
Cisco

Original NVD Description

A vulnerability in the web-based management interface of Cisco SPA112 2-Port Phone Adapters could allow an unauthenticated, remote attacker to execute arbitrary code on an affected device. This vulnerability is due to a missing authentication process within the firmware upgrade function. An attacker could exploit this vulnerability by upgrading an affected device to a crafted version of firmware. A successful exploit could allow the attacker to execute arbitrary code on the affected device with full privileges. Cisco has not released firmware updates to address this vulnerability.

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