Buffer overflow in Cisco Ip Phone 8800 Series Software
CVE-2019-1684
A vulnerability in the Cisco Discovery Protocol or Link Layer Discovery Protocol (LLDP) implementation for the Cisco IP Phone 7800 and 8800 Series could allow an unauthenticated, adjacent attacker to cause an affected phone to reload unexpectedly, resulting in a temporary denial of service (DoS) condition. The vulnerability is due to missing length validation of certain Cisco Discovery Protocol or LLDP packet header fields. An attacker could exploit this vulnerability by sending a malicious Cisco Discovery Protocol or LLDP packet to the targeted phone. A successful exploit could allow the attacker to cause the affected phone to reload unexpectedly, resulting in a temporary DoS condition. Versions prior to 12.6(1)MN80 are affected.
EPSS: 0.006 (49.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/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
- Cisco Ip_phone_7800
- Cisco Ip_phone_7800_firmware
- Cisco Ip_phone_7811
- Cisco Ip_phone_7811_firmware
- Cisco Ip_phone_7821
Weakness classification (CWE)
References
- psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)
- psirt@cisco.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
Frequently asked questions
- What is CVE-2019-1684?
- CVE-2019-1684 is a medium-severity vulnerability in Cisco Ip Phone 8800 Series Software, classified under CWE-399. CVSS score: 6.5/10. Published 2019-02-21.
- How severe is CVE-2019-1684?
- Medium severity. CVSS v3 base score is 6.5 out of 10.