IP
Product
IP Phone 8811 Firmware
by Cisco · last CVE Oct 15, 2025
On CISA KEVExploited in the wild
21
CVEs
1
On KEV
9.8
Max CVSS
0
New 30D
Severity mix
Critical 2High 9Medium 10Low 0
Watch

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CVECVSSEPSSPublishedSummary · affected versions
CVE-2021-33478
6.8
0%
Jul 22
The TrustZone implementation in certain Broadcom MediaxChange firmware could allow an unauthenticated, physically proximate attacker to achieve arbitrary code execution in the…
Affected: before 14.0\(1\)
CVE-2021-1379
6.5
0%
Nov 18
Cisco IP Phones Cisco Discovery Protocol and Link Layer Discovery Protocol Remote Code Execution and Denial of Service Vulnerabilities
Affected: before 12.8\(1\); 12.8(1)
CVE-2023-20018
6.5
1%
Jan 20
A vulnerability in the web-based management interface of Cisco IP Phone 7800 and 8800 Series Phones could allow an unauthenticated, remote attacker to bypass authentication on an…
Affected: before 14.1\(1\)sr2
CVE-2019-1684
6.5
1%
Feb 21
Cisco IP Phone 7800 and 8800 Series Cisco Discovery Protocol and Link Layer Discovery Protocol Denial of Service Vulnerability
Affected: before 12.6\(1\)mn80
CVE-2025-20351
6.1
0%
Oct 15
Cisco Desk Phone 9800 Series, IP Phone 7800 and 8800 Series, and Video Phone 8875 with SIP Firmware Cross-Site Scripting Vulnerability
Affected: before 14.3\(1\); 14.3(1); 14.3(1)
CVE-2021-34711
5.5
0%
Oct 6
A vulnerability in the debug shell of Cisco IP Phone software could allow an authenticated, local attacker to read any file on the device file system
Affected: before 14.1\(1\)
CVE-2019-16008
5.4
1%
Jan 26
A vulnerability in the web-based GUI of Cisco IP Phone 6800, 7800, and 8800 Series with Multiplatform Firmware could allow an authenticated, remote attacker to conduct a…
Affected: before 11.3\(1\)
CVE-2025-20335
5.3
0%
Sep 3
Cisco Desk Phone 9800 Series, IP Phone 7800 and 8800 Series, and Video Phone 8875 with SIP Firmware Information Arbitrary File Write Vulnerability
Affected: before 14.3\(1\); 14.3(1); 14.3(1)
CVE-2024-20445
5.3
0%
Nov 6
Cisco IP Phone 7800, 8800, and 9800 Series Information Disclosure Vulnerability
Affected: before 14.3\(1\)
CVE-2022-20660
4.6
0%
Jan 14
A vulnerability in the information storage architecture of several Cisco IP Phone models could allow an unauthenticated, physical attacker to obtain confidential information from…
Affected: before 14.1\(1\)
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