📦 Ip Phone 8821 Firmware

by Cisco

🔍 What is Ip Phone 8821 Firmware?

Description coming soon...

🛡️ Security Overview

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⚠️ Known Vulnerabilities

CVE-2025-20350

HIGH CVSS 7.5 Oct 15, 2025

A buffer overflow vulnerability in Cisco phone web interfaces allows unauthenticated remote attackers to cause denial of service by sending crafted HTTP packets. This affects Cisco Desk Phone 9800 Ser...

CVE-2025-20335

MEDIUM CVSS 5.3 Sep 3, 2025

An authentication bypass vulnerability in Cisco desk and IP phones allows unauthenticated remote attackers to write arbitrary files to specific directories when web access is enabled. This affects Cis...

CVE-2025-20336

MEDIUM CVSS 5.3 Sep 3, 2025

An information disclosure vulnerability in Cisco phone systems allows unauthenticated remote attackers to access sensitive information when Web Access is enabled. This affects Cisco Desk Phone 9800 Se...