CVE-2020-3161

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

Cisco Cisco IP PhonesNetwork & edge

CVSS

9.8Critical

ExploitationExploited in the wildAdded to KEV 3 Nov 2021CISA KEV

Exploit odds (EPSS)83.9%Chance of exploitation activity in the next 30 days, higher than 99% of CVEs. Scored 23 Oct 2026FIRST EPSS

Fixed inNone listedNo source names a fixed version. Check the vendor advisory below

Federal deadline3 May 2022Remediation due date for US federal agenciesCISA KEV

CISA required actionApply updates per vendor instructions. CISA KEV

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Timeline

15 Apr 2020, 20:10 UTCPublishedCVE List
17 Apr 2020Exploit code publicExploit-DB
3 Nov 2021Added to CISA KEVCISA KEV

Public exploit code and templates 1

Dos exploitCisco IP Phone 11.7 - Denial of service (PoC) 17 Apr 2020Exploit-DB

Listed so defenders can prioritize. Threatline links to the source and does not host exploit code.

Description

Cisco IP Phones contain an improper input validation vulnerability for HTTP requests. Exploitation could allow an attacker to execute code remotely with root privileges or cause a denial-of-service (DoS) condition.

Text from CVE List

Affected versions 1

Cisco IP phoneaffected: n/aCVE List