CVE-2025-20350

Summary

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.

Affected Software

VendorProductVersion RangeStatus
CiscoCisco Session Initiation Protocol (SIP) Software12.1(1)SR1affected
CiscoCisco Session Initiation Protocol (SIP) Software11.5(1)affected
CiscoCisco Session Initiation Protocol (SIP) Software10.3(2)affected
CiscoCisco Session Initiation Protocol (SIP) Software10.2(2)affected
CiscoCisco Session Initiation Protocol (SIP) Software10.3(1)affected
CiscoCisco Session Initiation Protocol (SIP) Software10.3(1)SR4affected
CiscoCisco Session Initiation Protocol (SIP) Software11.0(1)affected
CiscoCisco Session Initiation Protocol (SIP) Software10.4(1)SR2 3rd Partyaffected
CiscoCisco Session Initiation Protocol (SIP) Software11.7(1)affected
CiscoCisco Session Initiation Protocol (SIP) Software12.1(1)affected
CiscoCisco Session Initiation Protocol (SIP) Software11.0(0.7) MPPaffected
CiscoCisco Session Initiation Protocol (SIP) Software9.3(4) 3rd Partyaffected
CiscoCisco Session Initiation Protocol (SIP) Software12.5(1)SR2affected
CiscoCisco Session Initiation Protocol (SIP) Software10.2(1)SR1affected
CiscoCisco Session Initiation Protocol (SIP) Software9.3(4)SR3 3rd Partyaffected
CiscoCisco Session Initiation Protocol (SIP) Software10.2(1)affected
CiscoCisco Session Initiation Protocol (SIP) Software12.5(1)affected
CiscoCisco Session Initiation Protocol (SIP) Software10.3(1)SR2affected
CiscoCisco Session Initiation Protocol (SIP) Software11-0-1MSR1-1affected
CiscoCisco Session Initiation Protocol (SIP) Software10.4(1) 3rd Partyaffected
CiscoCisco Session Initiation Protocol (SIP) Software12.5(1)SR1affected
CiscoCisco Session Initiation Protocol (SIP) Software11.5(1)SR1affected
CiscoCisco Session Initiation Protocol (SIP) Software10.1(1)SR2affected
CiscoCisco Session Initiation Protocol (SIP) Software12.0(1)SR2affected
CiscoCisco Session Initiation Protocol (SIP) Software12.6(1)affected
CiscoCisco Session Initiation Protocol (SIP) Software10.3(1.11) 3rd Partyaffected
CiscoCisco Session Initiation Protocol (SIP) Software12.0(1)affected
CiscoCisco Session Initiation Protocol (SIP) Software12.0(1)SR1affected
CiscoCisco Session Initiation Protocol (SIP) Software9.3(3)affected
CiscoCisco Session Initiation Protocol (SIP) Software12.5(1)SR3affected
CiscoCisco Session Initiation Protocol (SIP) Software10.3(1)SR4baffected
CiscoCisco Session Initiation Protocol (SIP) Software9.3(4)SR1 3rd Partyaffected
CiscoCisco Session Initiation Protocol (SIP) Software10.3(1)SR5affected
CiscoCisco Session Initiation Protocol (SIP) Software10.1(1.9)affected
CiscoCisco Session Initiation Protocol (SIP) Software10.3(1.9) 3rd Partyaffected
CiscoCisco Session Initiation Protocol (SIP) Software9.3(4)SR2 3rd Partyaffected
CiscoCisco Session Initiation Protocol (SIP) Software10.3(1)SR1affected
CiscoCisco Session Initiation Protocol (SIP) Software10.3(1)SR3affected
CiscoCisco Session Initiation Protocol (SIP) Software10.1(1)SR1affected
CiscoCisco Session Initiation Protocol (SIP) Software12.0(1)SR3affected
CiscoCisco Session Initiation Protocol (SIP) Software12.6(1)SR1affected
CiscoCisco Session Initiation Protocol (SIP) Software12.7(1)affected
CiscoCisco Session Initiation Protocol (SIP) Software10.3(1)SR6affected
CiscoCisco Session Initiation Protocol (SIP) Software12.8(1)affected
CiscoCisco Session Initiation Protocol (SIP) Software12.7(1)SR1affected
CiscoCisco Session Initiation Protocol (SIP) Software11.0(2)SR1affected
CiscoCisco Session Initiation Protocol (SIP) Software11.0(4)affected
CiscoCisco Session Initiation Protocol (SIP) Software11.0(2)affected
CiscoCisco Session Initiation Protocol (SIP) Software11.0(4)SR3affected
CiscoCisco Session Initiation Protocol (SIP) Software11.0(5)affected
CiscoCisco Session Initiation Protocol (SIP) Software11.0(3)SR2affected
CiscoCisco Session Initiation Protocol (SIP) Software11.0(3)SR4affected
CiscoCisco Session Initiation Protocol (SIP) Software11.0(3)SR3affected
CiscoCisco Session Initiation Protocol (SIP) Software11.0(2)SR2affected
CiscoCisco Session Initiation Protocol (SIP) Software11.0(4)SR1affected
CiscoCisco Session Initiation Protocol (SIP) Software11.0(5)SR3affected
CiscoCisco Session Initiation Protocol (SIP) Software11.0(3)affected
CiscoCisco Session Initiation Protocol (SIP) Software11.0(5)SR2affected
CiscoCisco Session Initiation Protocol (SIP) Software11.0(3)SR6affected
CiscoCisco Session Initiation Protocol (SIP) Software11.0(5)SR1affected
CiscoCisco Session Initiation Protocol (SIP) Software11.0(4)SR2affected
CiscoCisco Session Initiation Protocol (SIP) Software11.0(3)SR1affected
CiscoCisco Session Initiation Protocol (SIP) Software11.0(3)SR5affected
CiscoCisco Session Initiation Protocol (SIP) Software11.0(6)affected
CiscoCisco Session Initiation Protocol (SIP) Software12.8(1)SR1affected
CiscoCisco Session Initiation Protocol (SIP) Software12.8(1)SR2affected
CiscoCisco Session Initiation Protocol (SIP) Software14.0(1)affected
CiscoCisco Session Initiation Protocol (SIP) Software14.0(1)SR1affected
CiscoCisco Session Initiation Protocol (SIP) Software11.0(6)SR1affected
CiscoCisco Session Initiation Protocol (SIP) Software10.3(1)SR7affected
CiscoCisco Session Initiation Protocol (SIP) Software14.0(1)SR2affected
CiscoCisco Session Initiation Protocol (SIP) Software14.1(1)affected
CiscoCisco Session Initiation Protocol (SIP) Software14.0(1)SR3affected
CiscoCisco Session Initiation Protocol (SIP) Software11.0(6)SR2affected
CiscoCisco Session Initiation Protocol (SIP) Software14.1(1)SR1affected
CiscoCisco Session Initiation Protocol (SIP) Software14.1(1)SR2affected
CiscoCisco Session Initiation Protocol (SIP) Software11.0(6)SR4affected
CiscoCisco Session Initiation Protocol (SIP) Software14.2(1)affected
CiscoCisco Session Initiation Protocol (SIP) Software14.2(1)SR1affected
CiscoCisco Session Initiation Protocol (SIP) Software11.0(6)SR5affected
CiscoCisco Session Initiation Protocol (SIP) Software14.1(1)SR3affected
CiscoCisco Session Initiation Protocol (SIP) Software14.2(1)SR2affected
CiscoCisco Session Initiation Protocol (SIP) Software3.1(1)affected
CiscoCisco Session Initiation Protocol (SIP) Software3.0(1)affected
CiscoCisco Session Initiation Protocol (SIP) Software2.3(1)affected
CiscoCisco Session Initiation Protocol (SIP) Software2.3(1)SR1affected
CiscoCisco Session Initiation Protocol (SIP) Software2.2(1)affected
CiscoCisco Session Initiation Protocol (SIP) Software2.1(1)affected
CiscoCisco Session Initiation Protocol (SIP) Software2.0(1)affected
CiscoCisco Session Initiation Protocol (SIP) Software14.2(1)SR3affected
CiscoCisco Session Initiation Protocol (SIP) Software3.1(1)SR1affected
CiscoCisco Session Initiation Protocol (SIP) Software14.3(1)affected
CiscoCisco Session Initiation Protocol (SIP) Software3.2(1)affected
CiscoCisco Session Initiation Protocol (SIP) Software14.3(1)SR1affected
CiscoCisco Session Initiation Protocol (SIP) Software14.2(1)SR4affected
CiscoCisco Session Initiation Protocol (SIP) Software11.0(6)SR6affected

Weaknesses

  • CWE-121: Stack-based Buffer Overflow

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: partial

References