CVE-2020-3143

Cisco TelePresence Collaboration Endpoint, TelePresence Codec, and RoomOS Software Path Traversal Vulnerability

HIGH
7.2
CVSS Score
Published: September 23, 2020 at 12:25 AM UTC
Updated: June 17, 2026 at 03:17 AM UTC
43 products affected across 1 vendorWebex Board 55 FirmwareWebex Board 85S FirmwareWebex Room 70 Firmware

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Severity
HIGH7.2
Exploit prediction
EPSS 8%
SSVC
No known exploit

Description

A vulnerability in the video endpoint API (xAPI) of Cisco TelePresence Collaboration Endpoint (CE) Software, Cisco TelePresence Codec (TC) Software, and Cisco RoomOS Software could allow an authenticated, remote attacker to conduct directory traversal attacks on an affected device. The vulnerability is due to insufficient validation of user-supplied input to the xAPI of the affected software. An attacker could exploit this vulnerability by sending a crafted request to the xAPI. A successful exploit could allow the attacker to read and write arbitrary files in the system. To exploit this vulnerability, an attacker would need either an In-Room Control or administrator account.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions
cisco-ex60 (same device)
All versions
cisco-ex90 (same device)
All versions
cisco-sx10 (same device)
All versions
cisco-sx20 (same device)
All versions
cisco-sx80 (same device)
All versions
cisco-telepresence-codec-c40 (same device)
All versions
cisco-telepresence-codec-c60 (same device)
All versions
cisco-telepresence-codec-c90 (same device)
All versions
cisco-telepresence-mx200 (same device)
All versions
cisco-telepresence-mx300 (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-22

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