cbcvebase.
CVE-2020-3574
published 2020-11-06

CVE-2020-3574: A vulnerability in the TCP packet processing functionality of Cisco IP Phones could allow an unauthenticated, remote attacker to cause the phone to stop…

PriorityP349high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
7.94%
94.0th percentile
A vulnerability in the TCP packet processing functionality of Cisco IP Phones could allow an unauthenticated, remote attacker to cause the phone to stop responding to incoming calls, drop connected calls, or unexpectedly reload. The vulnerability is due to insufficient TCP ingress packet rate limiting. An attacker could exploit this vulnerability by sending a high and sustained rate of crafted TCP traffic to the targeted device. A successful exploit could allow the attacker to impact operations of the phone or cause the phone to reload, leading to a denial of service (DoS) condition.

Affected

10 ranges
VendorProductVersion rangeFixed in
ciscocisco_ip_phones_with_multiplatform_firmware
ciscoip_dect_210_firmware< 4.8.14.8.1
ciscoip_dect_6825_firmware< 4.8.14.8.1
ciscoip_phone_8811_firmware< 11.3.211.3.2
ciscoip_phone_8841_firmware< 11.3.211.3.2
ciscoip_phone_8851_firmware< 11.3.211.3.2
ciscoip_phone_8861_firmware< 11.3.211.3.2
ciscoip_phone_tcp_packet_flood
ciscounified_ip_conference_phone_8831_firmware
ciscowebex_room_phone_firmware< 1.2.01.2.0

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.07.8HIGHAV:N/AC:L/Au:N/C:N/I:N/A:C
vendor_cisco7.5HIGH
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