CVE-2019-1922
moderate-risk
Published 2019-07-06
A vulnerability in Cisco SIP IP Phone Software for Cisco IP Phone 7800 Series and 8800 Series could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected phone. The vulnerability is due to insufficient validation of input Session Initiation Protocol (SIP) packets. An attacker could exploit this vulnerability by altering the SIP replies that are sent to the affected phone during the registration process. A successful exploit could allow the attacker to cause the phone to reboot and not complete the registration process.
Do I need to act?
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0.76% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.3/10
Medium
NETWORK
/ HIGH complexity
Affected Products (19)
Ip Conference Phone 7832 Firmware
Ip Conference Phone 8832 Firmware
Ip Conference Phone 8832 Firmware
Ip Phone 7811 Firmware
Ip Phone 7821 Firmware
Ip Phone 7841 Firmware
Ip Phone 7861 Firmware
Affected Vendors
References (2)
39
/ 100
moderate-risk
Severity
17/34 · Moderate
Exploitability
3/34 · Minimal
Exposure
19/34 · Moderate