CVE-2026-20281 Cisco Desk Phone 9800 Series, IP Phone 7800 and 8800 Series, and Video Phone 8875 with SIP Software Denial of Service Vulnerability
| Reporter | Title | Published | Views | Family All 6 |
|---|---|---|---|---|
 | Cisco Advance Notification for Publication of September 2, 2026, Security Advisories | 26 Aug 202616:00 | – | cisco |
| Cisco Desk Phone 9800 Series, IP Phone 7800 and 8800 Series, and Video Phone 8875 with SIP Software Denial of Service Vulnerability | 2 Sep 202616:00 | – | cisco |
 | CVE-2026-20281 | 2 Sep 202616:14 | – | cve |
 | EUVD-2026-70209 | 2 Sep 202616:14 | – | euvd |
 | CVE-2026-20281 | 2 Sep 202617:17 | – | nvd |
 | PT-2026-84813 | 2 Sep 202600:00 | – | ptsecurity |
[
{
"vendor": "Cisco",
"product": "Cisco Session Initiation Protocol (SIP) Software",
"versions": [
{
"version": "12.1(1)SR1",
"status": "affected"
},
{
"version": "11.5(1)",
"status": "affected"
},
{
"version": "10.3(2)",
"status": "affected"
},
{
"version": "10.2(2)",
"status": "affected"
},
{
"version": "10.3(1)",
"status": "affected"
},
{
"version": "10.3(1)SR4",
"status": "affected"
},
{
"version": "11.0(1)",
"status": "affected"
},
{
"version": "10.4(1)SR2 3rd Party",
"status": "affected"
},
{
"version": "11.7(1)",
"status": "affected"
},
{
"version": "12.1(1)",
"status": "affected"
},
{
"version": "11.0(0.7) MPP",
"status": "affected"
},
{
"version": "9.3(4) 3rd Party",
"status": "affected"
},
{
"version": "12.5(1)SR2",
"status": "affected"
},
{
"version": "10.2(1)SR1",
"status": "affected"
},
{
"version": "9.3(4)SR3 3rd Party",
"status": "affected"
},
{
"version": "10.2(1)",
"status": "affected"
},
{
"version": "12.5(1)",
"status": "affected"
},
{
"version": "10.3(1)SR2",
"status": "affected"
},
{
"version": "11-0-1MSR1-1",
"status": "affected"
},
{
"version": "10.4(1) 3rd Party",
"status": "affected"
},
{
"version": "12.5(1)SR1",
"status": "affected"
},
{
"version": "11.5(1)SR1",
"status": "affected"
},
{
"version": "10.1(1)SR2",
"status": "affected"
},
{
"version": "12.0(1)SR2",
"status": "affected"
},
{
"version": "12.6(1)",
"status": "affected"
},
{
"version": "10.3(1.11) 3rd Party",
"status": "affected"
},
{
"version": "12.0(1)",
"status": "affected"
},
{
"version": "12.0(1)SR1",
"status": "affected"
},
{
"version": "9.3(3)",
"status": "affected"
},
{
"version": "12.5(1)SR3",
"status": "affected"
},
{
"version": "10.3(1)SR4b",
"status": "affected"
},
{
"version": "9.3(4)SR1 3rd Party",
"status": "affected"
},
{
"version": "10.3(1)SR5",
"status": "affected"
},
{
"version": "10.1(1.9)",
"status": "affected"
},
{
"version": "10.3(1.9) 3rd Party",
"status": "affected"
},
{
"version": "9.3(4)SR2 3rd Party",
"status": "affected"
},
{
"version": "10.3(1)SR1",
"status": "affected"
},
{
"version": "10.3(1)SR3",
"status": "affected"
},
{
"version": "10.1(1)SR1",
"status": "affected"
},
{
"version": "12.0(1)SR3",
"status": "affected"
},
{
"version": "12.6(1)SR1",
"status": "affected"
},
{
"version": "12.7(1)",
"status": "affected"
},
{
"version": "10.3(1)SR6",
"status": "affected"
},
{
"version": "12.8(1)",
"status": "affected"
},
{
"version": "12.7(1)SR1",
"status": "affected"
},
{
"version": "11.0(2)SR1",
"status": "affected"
},
{
"version": "11.0(4)",
"status": "affected"
},
{
"version": "11.0(2)",
"status": "affected"
},
{
"version": "11.0(4)SR3",
"status": "affected"
},
{
"version": "11.0(5)",
"status": "affected"
},
{
"version": "11.0(3)SR2",
"status": "affected"
},
{
"version": "11.0(3)SR4",
"status": "affected"
},
{
"version": "11.0(3)SR3",
"status": "affected"
},
{
"version": "11.0(2)SR2",
"status": "affected"
},
{
"version": "11.0(4)SR1",
"status": "affected"
},
{
"version": "11.0(5)SR3",
"status": "affected"
},
{
"version": "11.0(3)",
"status": "affected"
},
{
"version": "11.0(5)SR2",
"status": "affected"
},
{
"version": "11.0(3)SR6",
"status": "affected"
},
{
"version": "11.0(5)SR1",
"status": "affected"
},
{
"version": "11.0(4)SR2",
"status": "affected"
},
{
"version": "11.0(3)SR1",
"status": "affected"
},
{
"version": "11.0(3)SR5",
"status": "affected"
},
{
"version": "11.0(6)",
"status": "affected"
},
{
"version": "12.8(1)SR1",
"status": "affected"
},
{
"version": "12.8(1)SR2",
"status": "affected"
},
{
"version": "14.0(1)",
"status": "affected"
},
{
"version": "14.0(1)SR1",
"status": "affected"
},
{
"version": "11.0(6)SR1",
"status": "affected"
},
{
"version": "10.3(1)SR7",
"status": "affected"
},
{
"version": "14.0(1)SR2",
"status": "affected"
},
{
"version": "14.1(1)",
"status": "affected"
},
{
"version": "14.0(1)SR3",
"status": "affected"
},
{
"version": "11.0(6)SR2",
"status": "affected"
},
{
"version": "14.1(1)SR1",
"status": "affected"
},
{
"version": "14.1(1)SR2",
"status": "affected"
},
{
"version": "11.0(6)SR4",
"status": "affected"
},
{
"version": "14.2(1)",
"status": "affected"
},
{
"version": "14.2(1)SR1",
"status": "affected"
},
{
"version": "11.0(6)SR5",
"status": "affected"
},
{
"version": "14.1(1)SR3",
"status": "affected"
},
{
"version": "14.2(1)SR2",
"status": "affected"
},
{
"version": "3.1(1)",
"status": "affected"
},
{
"version": "3.0(1)",
"status": "affected"
},
{
"version": "2.3(1)",
"status": "affected"
},
{
"version": "2.3(1)SR1",
"status": "affected"
},
{
"version": "2.2(1)",
"status": "affected"
},
{
"version": "2.1(1)",
"status": "affected"
},
{
"version": "2.0(1)",
"status": "affected"
},
{
"version": "14.2(1)SR3",
"status": "affected"
},
{
"version": "3.1(1)SR1",
"status": "affected"
},
{
"version": "14.3(1)",
"status": "affected"
},
{
"version": "3.2(1)",
"status": "affected"
},
{
"version": "14.3(1)SR1",
"status": "affected"
},
{
"version": "14.2(1)SR4",
"status": "affected"
},
{
"version": "3.3(1)",
"status": "affected"
},
{
"version": "11.0(6)SR6",
"status": "affected"
},
{
"version": "14.3(1)SR2",
"status": "affected"
},
{
"version": "3.4(1)",
"status": "affected"
},
{
"version": "14.3(1)SR3",
"status": "affected"
},
{
"version": "3.5(1)",
"status": "affected"
},
{
"version": "11.0(6)SR7",
"status": "affected"
},
{
"version": "3.5(1)SR1",
"status": "affected"
},
{
"version": "14.4(1)",
"status": "affected"
},
{
"version": "3.6(1)",
"status": "affected"
},
{
"version": "4.0(1)",
"status": "affected"
},
{
"version": "14.4(1)SR1",
"status": "affected"
},
{
"version": "4.1(1)",
"status": "affected"
},
{
"version": "14.4(1)SR2",
"status": "affected"
},
{
"version": "4.1(1)SR1",
"status": "affected"
}
],
"defaultStatus": "unknown"
}
]Data
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02 Sep 2026 16:14Current
CVSS 3.17.5