cisco-sa-phone-dos-txMYNRzvHighCVSS 7.5

Cisco Desk Phone 9800 Series, IP Phone 7800 and 8800 Series, and Video Phone 8875 with SIP Software Denial of Service Vulnerability

Published
September 2, 2026
Last Modified
September 2, 2026

🔗 CVE IDs covered (1)

CVE-2026-20281 →

📋 Description

🎯 Affected products110

  • Cisco Session Initiation Protocol (SIP) Software 12.8(1)
  • Cisco Session Initiation Protocol (SIP) Software 12.8(1)SR1
  • Cisco Session Initiation Protocol (SIP) Software 12.8(1)SR2
  • Cisco Session Initiation Protocol (SIP) Software 11.0(5)SR3
  • Cisco Session Initiation Protocol (SIP) Software 11.0(6)
  • Cisco Session Initiation Protocol (SIP) Software 11.0(6)SR1
  • Cisco Session Initiation Protocol (SIP) Software 11.0(6)SR2
  • Cisco Session Initiation Protocol (SIP) Software 11.0(6)SR4
  • Cisco Session Initiation Protocol (SIP) Software 11.0(6)SR5
  • Cisco Session Initiation Protocol (SIP) Software 11.0(3)SR5
  • Cisco Session Initiation Protocol (SIP) Software 11.0(3)SR2
  • Cisco Session Initiation Protocol (SIP) Software 11.0(2)
  • Cisco Session Initiation Protocol (SIP) Software 11-0-1MSR1-1
  • Cisco Session Initiation Protocol (SIP) Software 11.0(3)
  • Cisco Session Initiation Protocol (SIP) Software 11.0(2)SR2
  • Cisco Session Initiation Protocol (SIP) Software 11.0(3)SR6
  • Cisco Session Initiation Protocol (SIP) Software 11.0(4)
  • Cisco Session Initiation Protocol (SIP) Software 11.0(5)SR1
  • Cisco Session Initiation Protocol (SIP) Software 11.0(3)SR4
  • Cisco Session Initiation Protocol (SIP) Software 11.0(1)
  • Cisco Session Initiation Protocol (SIP) Software 11.0(5)
  • Cisco Session Initiation Protocol (SIP) Software 11.0(0.7) MPP
  • Cisco Session Initiation Protocol (SIP) Software 11.0(2)SR1
  • Cisco Session Initiation Protocol (SIP) Software 11.0(3)SR3
  • Cisco Session Initiation Protocol (SIP) Software 11.0(4)SR3
  • Cisco Session Initiation Protocol (SIP) Software 11.0(5)SR2
  • Cisco Session Initiation Protocol (SIP) Software 11.0(3)SR1
  • Cisco Session Initiation Protocol (SIP) Software 11.0(4)SR1
  • Cisco Session Initiation Protocol (SIP) Software 11.0(4)SR2
  • Cisco Session Initiation Protocol (SIP) Software 11.0(6)SR6
  • +80 more not shown

🔗 References (2)