CVE-2025-20350

HIGH7.5Memory safety

Description

A vulnerability in the web UI of Cisco Desk Phone 9800 Series, Cisco IP Phone 7800 and 8800 Series, and Cisco Video Phone 8875 running Cisco SIP Software could allow an unauthenticated, remote attacker to cause a DoS condition on an affected device. This vulnerability is due to a buffer overflow when an affected device processes HTTP packets. An attacker could exploit this vulnerability by sending crafted HTTP input to the device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition. Note: To exploit this vulnerability, the phone must be registered to Cisco Unified Communications Manager and have Web Access enabled. Web Access is disabled by default.

CVSS breakdown

CVSS 3.1

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Affected products

Cisco / Cisco Session Initiation Protocol (SIP) Software12.6(1)SR1 – 12.6(1)SR1
Cisco / Cisco Session Initiation Protocol (SIP) Software12.1(1)SR1 – 12.1(1)SR1
Cisco / Cisco Session Initiation Protocol (SIP) Software11.5(1) – 11.5(1)
Cisco / Cisco Session Initiation Protocol (SIP) Software10.3(2) – 10.3(2)
Cisco / Cisco Session Initiation Protocol (SIP) Software10.2(2) – 10.2(2)
Cisco / Cisco Session Initiation Protocol (SIP) Software10.3(1) – 10.3(1)
Cisco / Cisco Session Initiation Protocol (SIP) Software10.3(1)SR4 – 10.3(1)SR4
Cisco / Cisco Session Initiation Protocol (SIP) Software11.0(1) – 11.0(1)
Cisco / Cisco Session Initiation Protocol (SIP) Software10.4(1)SR2 3rd Party – 10.4(1)SR2 3rd Party
Cisco / Cisco Session Initiation Protocol (SIP) Software11.7(1) – 11.7(1)
Cisco / Cisco Session Initiation Protocol (SIP) Software12.1(1) – 12.1(1)
Cisco / Cisco Session Initiation Protocol (SIP) Software11.0(0.7) MPP – 11.0(0.7) MPP
Cisco / Cisco Session Initiation Protocol (SIP) Software9.3(4) 3rd Party – 9.3(4) 3rd Party
Cisco / Cisco Session Initiation Protocol (SIP) Software12.5(1)SR2 – 12.5(1)SR2
Cisco / Cisco Session Initiation Protocol (SIP) Software10.2(1)SR1 – 10.2(1)SR1
Cisco / Cisco Session Initiation Protocol (SIP) Software9.3(4)SR3 3rd Party – 9.3(4)SR3 3rd Party
Cisco / Cisco Session Initiation Protocol (SIP) Software10.2(1) – 10.2(1)
Cisco / Cisco Session Initiation Protocol (SIP) Software10.3(1)SR2 – 10.3(1)SR2
Cisco / Cisco Session Initiation Protocol (SIP) Software11-0-1MSR1-1 – 11-0-1MSR1-1
Cisco / Cisco Session Initiation Protocol (SIP) Software10.4(1) 3rd Party – 10.4(1) 3rd Party
Cisco / Cisco Session Initiation Protocol (SIP) Software12.5(1)SR1 – 12.5(1)SR1
Cisco / Cisco Session Initiation Protocol (SIP) Software11.5(1)SR1 – 11.5(1)SR1
Cisco / Cisco Session Initiation Protocol (SIP) Software10.1(1)SR2 – 10.1(1)SR2
Cisco / Cisco Session Initiation Protocol (SIP) Software12.0(1)SR2 – 12.0(1)SR2
Cisco / Cisco Session Initiation Protocol (SIP) Software12.6(1) – 12.6(1)
Cisco / Cisco Session Initiation Protocol (SIP) Software10.3(1.11) 3rd Party – 10.3(1.11) 3rd Party
Cisco / Cisco Session Initiation Protocol (SIP) Software12.0(1) – 12.0(1)
Cisco / Cisco Session Initiation Protocol (SIP) Software12.0(1)SR1 – 12.0(1)SR1
Cisco / Cisco Session Initiation Protocol (SIP) Software9.3(3) – 9.3(3)
Cisco / Cisco Session Initiation Protocol (SIP) Software12.5(1)SR3 – 12.5(1)SR3
Cisco / Cisco Session Initiation Protocol (SIP) Software10.3(1)SR4b – 10.3(1)SR4b
Cisco / Cisco Session Initiation Protocol (SIP) Software9.3(4)SR1 3rd Party – 9.3(4)SR1 3rd Party
Cisco / Cisco Session Initiation Protocol (SIP) Software10.3(1)SR5 – 10.3(1)SR5
Cisco / Cisco Session Initiation Protocol (SIP) Software10.1(1.9) – 10.1(1.9)
Cisco / Cisco Session Initiation Protocol (SIP) Software10.3(1.9) 3rd Party – 10.3(1.9) 3rd Party
Cisco / Cisco Session Initiation Protocol (SIP) Software9.3(4)SR2 3rd Party – 9.3(4)SR2 3rd Party
Cisco / Cisco Session Initiation Protocol (SIP) Software10.3(1)SR1 – 10.3(1)SR1
Cisco / Cisco Session Initiation Protocol (SIP) Software10.3(1)SR3 – 10.3(1)SR3
Cisco / Cisco Session Initiation Protocol (SIP) Software10.1(1)SR1 – 10.1(1)SR1
Cisco / Cisco Session Initiation Protocol (SIP) Software12.0(1)SR3 – 12.0(1)SR3
Cisco / Cisco Session Initiation Protocol (SIP) Software12.5(1) – 12.5(1)
Cisco / Cisco Session Initiation Protocol (SIP) Software12.7(1) – 12.7(1)
Cisco / Cisco Session Initiation Protocol (SIP) Software10.3(1)SR6 – 10.3(1)SR6
Cisco / Cisco Session Initiation Protocol (SIP) Software12.8(1) – 12.8(1)
Cisco / Cisco Session Initiation Protocol (SIP) Software12.7(1)SR1 – 12.7(1)SR1
Cisco / Cisco Session Initiation Protocol (SIP) Software11.0(2)SR1 – 11.0(2)SR1
Cisco / Cisco Session Initiation Protocol (SIP) Software11.0(4) – 11.0(4)
Cisco / Cisco Session Initiation Protocol (SIP) Software11.0(2) – 11.0(2)
Cisco / Cisco Session Initiation Protocol (SIP) Software11.0(4)SR3 – 11.0(4)SR3
Cisco / Cisco Session Initiation Protocol (SIP) Software11.0(5) – 11.0(5)
Cisco / Cisco Session Initiation Protocol (SIP) Software11.0(3)SR2 – 11.0(3)SR2
Cisco / Cisco Session Initiation Protocol (SIP) Software11.0(3)SR4 – 11.0(3)SR4
Cisco / Cisco Session Initiation Protocol (SIP) Software11.0(3)SR3 – 11.0(3)SR3
Cisco / Cisco Session Initiation Protocol (SIP) Software11.0(2)SR2 – 11.0(2)SR2
Cisco / Cisco Session Initiation Protocol (SIP) Software11.0(4)SR1 – 11.0(4)SR1
Cisco / Cisco Session Initiation Protocol (SIP) Software11.0(5)SR3 – 11.0(5)SR3
Cisco / Cisco Session Initiation Protocol (SIP) Software11.0(3) – 11.0(3)
Cisco / Cisco Session Initiation Protocol (SIP) Software11.0(5)SR2 – 11.0(5)SR2
Cisco / Cisco Session Initiation Protocol (SIP) Software11.0(3)SR6 – 11.0(3)SR6
Cisco / Cisco Session Initiation Protocol (SIP) Software11.0(5)SR1 – 11.0(5)SR1
Cisco / Cisco Session Initiation Protocol (SIP) Software11.0(4)SR2 – 11.0(4)SR2
Cisco / Cisco Session Initiation Protocol (SIP) Software11.0(3)SR1 – 11.0(3)SR1
Cisco / Cisco Session Initiation Protocol (SIP) Software11.0(3)SR5 – 11.0(3)SR5
Cisco / Cisco Session Initiation Protocol (SIP) Software11.0(6) – 11.0(6)
Cisco / Cisco Session Initiation Protocol (SIP) Software12.8(1)SR1 – 12.8(1)SR1
Cisco / Cisco Session Initiation Protocol (SIP) Software12.8(1)SR2 – 12.8(1)SR2
Cisco / Cisco Session Initiation Protocol (SIP) Software14.0(1) – 14.0(1)
Cisco / Cisco Session Initiation Protocol (SIP) Software14.0(1)SR1 – 14.0(1)SR1
Cisco / Cisco Session Initiation Protocol (SIP) Software11.0(6)SR1 – 11.0(6)SR1
Cisco / Cisco Session Initiation Protocol (SIP) Software10.3(1)SR7 – 10.3(1)SR7
Cisco / Cisco Session Initiation Protocol (SIP) Software14.0(1)SR2 – 14.0(1)SR2
Cisco / Cisco Session Initiation Protocol (SIP) Software14.1(1) – 14.1(1)
Cisco / Cisco Session Initiation Protocol (SIP) Software14.0(1)SR3 – 14.0(1)SR3
Cisco / Cisco Session Initiation Protocol (SIP) Software11.0(6)SR2 – 11.0(6)SR2
Cisco / Cisco Session Initiation Protocol (SIP) Software14.1(1)SR1 – 14.1(1)SR1
Cisco / Cisco Session Initiation Protocol (SIP) Software14.1(1)SR2 – 14.1(1)SR2
Cisco / Cisco Session Initiation Protocol (SIP) Software11.0(6)SR4 – 11.0(6)SR4
Cisco / Cisco Session Initiation Protocol (SIP) Software14.2(1) – 14.2(1)
Cisco / Cisco Session Initiation Protocol (SIP) Software14.2(1)SR1 – 14.2(1)SR1
Cisco / Cisco Session Initiation Protocol (SIP) Software11.0(6)SR5 – 11.0(6)SR5
Cisco / Cisco Session Initiation Protocol (SIP) Software14.1(1)SR3 – 14.1(1)SR3
Cisco / Cisco Session Initiation Protocol (SIP) Software14.2(1)SR2 – 14.2(1)SR2
Cisco / Cisco Session Initiation Protocol (SIP) Software3.1(1) – 3.1(1)
Cisco / Cisco Session Initiation Protocol (SIP) Software3.0(1) – 3.0(1)
Cisco / Cisco Session Initiation Protocol (SIP) Software2.3(1) – 2.3(1)
Cisco / Cisco Session Initiation Protocol (SIP) Software2.3(1)SR1 – 2.3(1)SR1
Cisco / Cisco Session Initiation Protocol (SIP) Software2.2(1) – 2.2(1)
Cisco / Cisco Session Initiation Protocol (SIP) Software2.1(1) – 2.1(1)
Cisco / Cisco Session Initiation Protocol (SIP) Software2.0(1) – 2.0(1)
Cisco / Cisco Session Initiation Protocol (SIP) Software14.2(1)SR3 – 14.2(1)SR3
Cisco / Cisco Session Initiation Protocol (SIP) Software3.1(1)SR1 – 3.1(1)SR1
Cisco / Cisco Session Initiation Protocol (SIP) Software14.3(1) – 14.3(1)
Cisco / Cisco Session Initiation Protocol (SIP) Software3.2(1) – 3.2(1)
Cisco / Cisco Session Initiation Protocol (SIP) Software14.3(1)SR1 – 14.3(1)SR1
Cisco / Cisco Session Initiation Protocol (SIP) Software14.2(1)SR4 – 14.2(1)SR4
Cisco / Cisco Session Initiation Protocol (SIP) Software11.0(6)SR6 – 11.0(6)SR6
Cisco / desk_phone_9841_firmware3.0\(1\) – 3.2\(1\)
Cisco / desk_phone_9851_firmware3.0\(1\) – 3.2\(1\)
Cisco / desk_phone_9861_firmware3.0\(1\) – 3.2\(1\)
Cisco / desk_phone_9871_firmware3.0\(1\) – 3.2\(1\)
Cisco / ip_phone_7811_firmware14.3(1) – 14.3(1)
Cisco / ip_phone_7811_firmware14.3\(1\)
Cisco / ip_phone_7811_firmware14.3(1) – 14.3(1)
Cisco / ip_phone_7821_firmware14.3\(1\)
Cisco / ip_phone_7821_firmware14.3(1) – 14.3(1)
Cisco / ip_phone_7821_firmware14.3(1) – 14.3(1)
Cisco / ip_phone_7841_firmware14.3(1) – 14.3(1)
Cisco / ip_phone_7841_firmware14.3(1) – 14.3(1)
Cisco / ip_phone_7841_firmware14.3\(1\)
Cisco / ip_phone_7861_firmware14.3(1) – 14.3(1)
Cisco / ip_phone_7861_firmware14.3\(1\)
Cisco / ip_phone_7861_firmware14.3(1) – 14.3(1)
Cisco / ip_phone_8811_firmware14.3\(1\)
Cisco / ip_phone_8811_firmware14.3(1) – 14.3(1)
Cisco / ip_phone_8811_firmware14.3(1) – 14.3(1)
Cisco / ip_phone_8821_firmware11.0(6) – 11.0(6)
Cisco / ip_phone_8821_firmware11.0(2) – 11.0(2)
Cisco / ip_phone_8821_firmware11.0(3) – 11.0(3)
Cisco / ip_phone_8821_firmware11.0(3) – 11.0(3)
Cisco / ip_phone_8821_firmware11.0(3) – 11.0(3)
Cisco / ip_phone_8821_firmware11.0(3) – 11.0(3)
Cisco / ip_phone_8821_firmware11.0(3) – 11.0(3)
Cisco / ip_phone_8821_firmware11.0(3) – 11.0(3)
Cisco / ip_phone_8821_firmware11.0(3) – 11.0(3)
Cisco / ip_phone_8821_firmware11.0(4) – 11.0(4)
Cisco / ip_phone_8821_firmware11.0(4) – 11.0(4)
Cisco / ip_phone_8821_firmware11.0(4) – 11.0(4)
Cisco / ip_phone_8821_firmware11.0(4) – 11.0(4)
Cisco / ip_phone_8821_firmware11.0(5) – 11.0(5)
Cisco / ip_phone_8821_firmware11.0(5) – 11.0(5)
Cisco / ip_phone_8821_firmware11.0(5) – 11.0(5)
Cisco / ip_phone_8821_firmware11.0(5) – 11.0(5)
Cisco / ip_phone_8821_firmware11.0(6) – 11.0(6)
Cisco / ip_phone_8821_firmware11.0(6) – 11.0(6)
Cisco / ip_phone_8821_firmware11.0(6) – 11.0(6)
Cisco / ip_phone_8821_firmware11.0(6) – 11.0(6)
Cisco / ip_phone_8821_firmware11.0(6) – 11.0(6)
Cisco / ip_phone_8821_firmware11.0\(1\)
Cisco / ip_phone_8821_firmware11.0(0.7) – 11.0(0.7)
Cisco / ip_phone_8821_firmware11.0(1) – 11.0(1)
Cisco / ip_phone_8821_firmware11.0(2) – 11.0(2)
Cisco / ip_phone_8821_firmware11.0(2) – 11.0(2)
Cisco / ip_phone_8832_firmware14.3\(1\)
Cisco / ip_phone_8832_firmware14.3(1) – 14.3(1)
Cisco / ip_phone_8832_firmware14.3(1) – 14.3(1)
Cisco / ip_phone_8841_firmware14.3(1) – 14.3(1)
Cisco / ip_phone_8841_firmware14.3(1) – 14.3(1)
Cisco / ip_phone_8841_firmware14.3\(1\)
Cisco / ip_phone_8845_firmware14.3\(1\)
Cisco / ip_phone_8845_firmware14.3(1) – 14.3(1)
Cisco / ip_phone_8845_firmware14.3(1) – 14.3(1)
Cisco / ip_phone_8851_firmware14.3\(1\)
Cisco / ip_phone_8851_firmware14.3(1) – 14.3(1)
Cisco / ip_phone_8851_firmware14.3(1) – 14.3(1)
Cisco / ip_phone_8861_firmware14.3\(1\)
Cisco / ip_phone_8861_firmware14.3(1) – 14.3(1)
Cisco / ip_phone_8861_firmware14.3(1) – 14.3(1)
Cisco / ip_phone_8865_firmware14.3\(1\)
Cisco / ip_phone_8865_firmware14.3(1) – 14.3(1)
Cisco / ip_phone_8865_firmware14.3(1) – 14.3(1)
Cisco / video_phone_8875_firmware2.3(1) – 2.3(1)
Cisco / video_phone_8875_firmware2.3(1) – 2.3(1)
Cisco / video_phone_8875_firmware2.3\(1\)

References

VENDOR_ADVISORYhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-phone-dos-FPyjLV7A

Updated 40m ago · 8 sources