IP
Product
IP Phone 8821 Firmware
by Cisco · last CVE Oct 15, 2025
On CISA KEVExploited in the wild
10
CVEs
1
On KEV
9.8
Max CVSS
0
New 30D
Severity mix
Critical 2High 4Medium 4Low 0
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CVECVSSEPSSPublishedSummary · affected versions
CVE-2019-1764
8.8
1%
Mar 22
A vulnerability in the web-based management interface of Session Initiation Protocol (SIP) Software for Cisco IP Phone 8800 Series could allow an unauthenticated, remote attacker…
Affected: before 11.0\(5\)
CVE-2025-20350
7.5
0%
Oct 15
Cisco Desk Phone 9800 Series, IP Phone 7800 and 8800 Series, and Video Phone 8875 with SIP Firmware Denial of Service Vulnerability
Affected: before 11.0\(1\); 11.0(0.7); 11.0(1); 11.0(2); 11.0(2); 11.0(2); +21 more
CVE-2025-20336
7.5
0%
Sep 3
Cisco Desk Phone 9800 Series, IP Phone 7800 and 8800 Series, and Video Phone 8875 with SIP Firmware Information Disclosure Vulnerability
Affected: before 11.0\(6\); 11.0(6); 11.0(6); 11.0(6); 11.0(6); 11.0(6); +1 more
CVE-2019-1763
7.5
2%
Mar 22
A vulnerability in the web-based management interface of Session Initiation Protocol (SIP) Software for Cisco IP Phone 8800 Series could allow an unauthenticated, remote attacker…
Affected: before 11.0\(5\)
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