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CVE-2023-20126

Cisco SPA112 - Web-based management interface

Cisco CVSS 9.8 Updated March 18, 2026

Executive Risk Summary

"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, allowing an attacker to upgrade an affected device to a crafted version of firmware and execute arbitrary code with full privileges."

Operational Audit Arsenal

Target Type Firmware Image
Target Asset Firmware Image
Standard Path Global Firmware

Manual Verification Required

This is a non-Windows asset (Cisco). Use the target asset details and official path provided above to verify your current version against the official vendor advisories listed below.

Patch Impact Forecast

Reboot Required Likely

Potential service disruption due to firmware upgrade

Internal Work Notes

Unauthenticated remote code execution vulnerability in Cisco SPA112 phone adapters, requiring immediate attention to prevent potential attacks

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Intelligence Sources

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Data compiled from NVD, MSRC, and CISA KEV Catalog. Intelligence synthesized via AI. Scripts provided for diagnostic purposes under MIT License.