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.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.013 (70.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 70.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000
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
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190703… (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.