VDB

CVE-2020-3161

CVE-2020-3161 PUBLISHED KEV CVSS 9.800000190734863 CRITICAL

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 (DoS) condition. The vulnerability is due to a lack of proper input validation of HTTP requests. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web server of a targeted device. A successful exploit could allow the attacker to remotely execute code with root privileges or cause a reload of an affected IP phone, resulting in a DoS condition.

EPSS 87.09% · 99.5th percentile

Risk Scores

CVSS 3.0
9.800000190734863
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score
87.09%
99.5th percentile

Affected Products

VendorProductVersions
ciscoip_phone_8821_firmware11.0\(1\), 11.0\(5\)sr1, *
ciscoip_phone_8861_firmware11.0\(1\), 10.3\(1\)es14, 11.0\(5\)sr1
ciscoip_phone_8845_firmware10.3\(1\)es14, *, 11.0\(1\)
ciscoip_phone_8841_firmware11.0\(5\)sr1, 11.0\(5\)sr1, 11.0\(1\)
ciscoip_phone_7861_firmware*, *, 11.0\(1\)
ciscoip_phone_7821_firmware11.0\(1\), *, 11.0\(1\)
ciscoip_phone_7811_firmware11.0\(1\), *, 11.0\(1\)
CiscoCisco IP phone*
ciscoip_phone_8851_firmware*, 11.0\(1\), 10.3\(1\)es14
ciscoip_phone_8865_firmware*, 11.0\(1\), 11.0\(5\)sr1
cisco8831_firmware11.0\(1\), *, 10.3\(1\)es14
ciscoip_phone_7841_firmware11.0\(1\), 11.0\(1\), *
ciscoip_phone_8811_firmware*, 11.0\(1\), 11.0\(5\)sr1
ciscoip_phone_8821-ex_firmware*, 10.3\(1\)es14, 11.0\(1\)

Timeline

  • Jan 19, 1970 VulnCheck XDB Entry
  • Apr 15, 2020 CVE Published
  • Apr 17, 2020 PoC Published
  • Apr 18, 2020 PoC Published
  • Apr 14, 2021 EPSS Score
  • Aug 24, 2021 EPSS Score
  • Oct 26, 2021 EPSS Score
  • Oct 28, 2021 PoC Published
  • Nov 3, 2021 CISA KEV Added
  • Nov 8, 2021 PoC Published
  • Nov 20, 2021 PoC Published
  • Feb 4, 2022 EPSS Score
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