Cisco Ip Phone 7821 Firmware — known CVE vulnerabilities
Every CVE whose affected-product data names Cisco Ip Phone 7821 Firmware, ordered by CVSS severity, with EPSS exploit prediction and CISA KEV status.
CVEs (19)
CVE-2023-20078 — CVSS 9.8 (critical): Multiple vulnerabilities in the web-based management interface of certain Cisco IP Phones could allow an unauthenticated, remote attacker…
CVE-2023-20079 — CVSS 9.8 (critical): Multiple vulnerabilities in the web-based management interface of certain Cisco IP Phones could allow an unauthenticated, remote attacker…
CVE-2020-3111 — CVSS 8.8 (high): A vulnerability in the Cisco Discovery Protocol implementation for the Cisco IP Phone could allow an unauthenticated, adjacent attacker to…
CVE-2023-20018 — CVSS 8.6 (high): A vulnerability in the web-based management interface of Cisco IP Phone 7800 and 8800 Series Phones could allow an unauthenticated, remote…
CVE-2022-20968 — CVSS 8.1 (high): A vulnerability in the Cisco Discovery Protocol processing feature of Cisco IP Phone 7800 and 8800 Series firmware could allow an…
CVE-2025-20350 — CVSS 7.5 (high): A vulnerability in the web UI of Cisco Desk Phone 9800 Series, Cisco IP Phone 7800 and 8800 Series, and Cisco Video Phone 8875 running…
CVE-2019-1635 — CVSS 7.5 (high): A vulnerability in the call-handling functionality of Session Initiation Protocol (SIP) Software for Cisco IP Phone 7800 Series and 8800…
CVE-2022-20774 — CVSS 6.8 (medium): A vulnerability in the web-based management interface of Cisco IP Phone 6800, 7800, and 8800 Series with Multiplatform Firmware could allow…
CVE-2021-1379 — CVSS 6.5 (medium): Multiple vulnerabilities in the Cisco Discovery Protocol and Link Layer Discovery Protocol (LLDP) implementations for Cisco IP…
CVE-2019-1684 — CVSS 6.5 (medium): A vulnerability in the Cisco Discovery Protocol or Link Layer Discovery Protocol (LLDP) implementation for the Cisco IP Phone 7800 and 8800…
CVE-2025-20351 — CVSS 6.1 (medium): A vulnerability in the web UI of Cisco Desk Phone 9800 Series, Cisco IP Phone 7800 and 8800 Series, and Cisco Video Phone 8875 running…
CVE-2021-34711 — CVSS 5.5 (medium): A vulnerability in the debug shell of Cisco IP Phone software could allow an authenticated, local attacker to read any file on the device…
CVE-2019-16008 — CVSS 5.4 (medium): A vulnerability in the web-based GUI of Cisco IP Phone 6800, 7800, and 8800 Series with Multiplatform Firmware could allow an…
CVE-2025-20336 — CVSS 5.3 (medium): A vulnerability in the directory permissions of Cisco Desk Phone 9800 Series, Cisco IP Phone 7800 and 8800 Series, and Cisco Video Phone…
CVE-2019-1922 — CVSS 5.3 (medium): A vulnerability in Cisco SIP IP Phone Software for Cisco IP Phone 7800 Series and 8800 Series could allow an unauthenticated, remote…
CVE-2025-20335 — CVSS 5.3 (medium): A vulnerability in the directory permissions of Cisco Desk Phone 9800 Series, Cisco IP Phone 7800 and 8800 Series, and Cisco Video Phone…
CVE-2024-20445 — CVSS 5.3 (medium): A vulnerability in the web UI of Cisco Desk Phone 9800 Series, Cisco IP Phone 7800 and 8800 Series, and Cisco Video Phone 8875 could allow…
CVE-2022-20660 — CVSS 4.6 (medium): A vulnerability in the information storage architecture of several Cisco IP Phone models could allow an unauthenticated, physical attacker…