NULL pointer dereference in Cisco Ip Phone 8800 Series Software
CVE-2019-1922
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.
EPSS: 0.013 (69.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H.
Affected products
- Cisco Ip Phone 8800 Series Software — versions unspecified
- Cisco Ip_conference_phone_7832
- Cisco Ip_conference_phone_7832_firmware
- Cisco Ip_conference_phone_8832
- Cisco Ip_conference_phone_8832_firmware — versions 12.5(1), 11.5\(1\), 12.5\(1\)
- Cisco Ip_phone_7811
- Cisco Ip_phone_7811_firmware
- Cisco Ip_phone_7821
- Cisco Ip_phone_7821_firmware
- Cisco Ip_phone_7841
Weakness classification (CWE)
References
- psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2019-1922?
- CVE-2019-1922 is a medium-severity vulnerability in Cisco Ip Phone 8800 Series Software, classified under NULL Pointer Dereference. CVSS score: 5.3/10. Published 2019-07-06.
- How severe is CVE-2019-1922?
- Medium severity. CVSS v3 base score is 5.3 out of 10.