IP Phone 8811 Firmware vulnerabilitiesAnd the versions its exploited flaws hit.

Product1 known exploited67 versions
The short answer

IP Phone 8811 Firmware is made by Cisco. We track 15 published vulnerabilities in it, across 67 versions. 1 of them is on the list of flaws known to be exploited, the newest added on 3 November 2021. If you run IP Phone 8811 Firmware, check your version against the exploited flaws below and patch those first.

Check your version

The most recent IP Phone 8811 Firmware flaw added to the known-exploited list is CVE-2020-3161, on 3 November 2021. We keep watching the known-exploited list.

Versions

Which versions of IP Phone 8811 Firmware do the exploited flaws hit?

Each exploited flaw lists the versions it affects, as published by the vendor. Find your version, then patch.

  • CVE-2020-3161Exploited list, 3 Nov 2021

    Cisco IP Phones Web Server Remote Code Execution and Denial-of-Service Vulnerability

    10.3(1)es1411.0(1)11.0(5)sr1
Known exploited

Which IP Phone 8811 Firmware vulnerabilities are being exploited?

1 flaw is on the government list of vulnerabilities known to be exploited. These are the ones criminals are using now, so they go first, whatever their severity score says.

  1. 9.8
    CVE-2020-3161CriticalKnown exploited
    Cisco IP Phones Web Server Remote Code Execution and Denial-of-Service Vulnerability

    Cisco IP Phones contain an improper input validation vulnerability for HTTP requests.

    Chance of use84%Known exploited since3 Nov 2021
Exploit likelihood

Which IP Phone 8811 Firmware flaws are most likely to be used?

Ranked by the latest exploit-likelihood forecast: the chance each flaw is used in an attack in the next 30 days. A high severity score on its own doesn't tell you that. Flaws shared by many other makers' products are left out.

50% or more10% to 49%Under 10%
  1. 84%
    CVE-2020-3161CriticalKnown exploited

    A vulnerability in the web server for Cisco IP Phones could allow an unauthenticated, remote attacker to execute code with root privileges or cause a reload of an affected IP phone, resulting in a denial of service...

    CVSS9.8Published15 Apr 2020
  2. 10%

    Multiple vulnerabilities in the web-based management interface of certain Cisco IP Phones could allow an unauthenticated, remote attacker to execute arbitrary code or cause a denial of service (DoS) condition.

    CVSS9.8Published3 Mar 2023
  3. 10%

    Multiple vulnerabilities in the web-based management interface of certain Cisco IP Phones could allow an unauthenticated, remote attacker to execute arbitrary code or cause a denial of service (DoS) condition.

    CVSS7.5Published3 Mar 2023
  4. 8.0%

    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...

    CVSS7.5Published6 Nov 2020
  5. 6.4%

    A vulnerability in the Cisco Discovery Protocol processing feature of Cisco IP Phone 7800 and 8800 Series firmware could allow an unauthenticated, adjacent attacker to cause a stack overflow on an affected device.

    CVSS8.8Published12 Dec 2022
  6. 3.1%

    A vulnerability in the Cisco Discovery Protocol implementation for the Cisco IP Phone could allow an unauthenticated, adjacent attacker to remotely execute code with root privileges or cause a reload of an affected...

    CVSS8.8Published5 Feb 2020
  7. 2.0%

    A vulnerability in the call-handling functionality of Session Initiation Protocol (SIP) Software for Cisco IP Phone 7800 Series and 8800 Series could allow an unauthenticated, remote attacker to cause an affected...

    CVSS7.5Published3 May 2019
  8. 1.3%

    A vulnerability in Cisco SIP IP Phone Software for Cisco IP Phone 7800 Series and 8800 Series could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected phone.

    CVSS7.5Published6 Jul 2019
  9. 0.6%

    A vulnerability in the Cisco Discovery Protocol or Link Layer Discovery Protocol (LLDP) implementation for the Cisco IP Phone 7800 and 8800 Series could allow an unauthenticated, adjacent attacker to cause an...

    CVSS6.5Published21 Feb 2019
  10. 0.6%

    A vulnerability in the web-based GUI of Cisco IP Phone 6800, 7800, and 8800 Series with Multiplatform Firmware could allow an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a...

    CVSS5.4Published26 Jan 2020
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We track 15 published vulnerabilities listed under the name IP Phone 8811 Firmware, across 67 versions. The most recent IP Phone 8811 Firmware flaw added to the known-exploited list is CVE-2020-3161, on 3 November 2021.

1 is on the list of flaws known to be exploited. The most recently added is CVE-2020-3161.

Each flaw names its own versions, usually as ranges. The newest, CVE-2020-3161, affects 10.3(1)es14, 11.0(1), 11.0(5)sr1. The versions for every exploited flaw are listed on this page.

Create a Precursor Intelligence account and track IP Phone 8811 Firmware. We match it against every published flaw, give each one a risk score from 0 to 100 and keep watching, so you hear about new ones as soon as we know, by email, in the app or by webhook.