No exploitation reported

CVE-2020-3143

No exploitation reported by the sources we read.

Published2020-09-23
WeaknessCWE-22

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC

2020-09-2301:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2020-3143?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2020-3143?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Cisco ex60 firmwareversion to verify

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

Cisco ex90 firmwareversion to verify

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

Cisco sx10 firmwareversion to verify

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

18 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Advisories and patches

tools.cisco.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2024-11-13
OpenCVESSVC decisionnone—
NVDCVSS 3.17.2read 2026-10-23
CNACVSS 3.08.8read 2026-10-23
NVDCVSS 2.09read 2026-10-23
CNAweakness (CWE)CWE-22read 2026-10-23
NVDweakness (CWE)CWE-22read 2026-10-23
FIRST EPSSEPSS score8.5 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Published: 2020-09-23
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2020-3143?

Is CVE-2020-3143 actively exploited?

Active exploitation of CVE-2020-3143 has not been confirmed. Its EPSS score was 8.5% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-3143?

CVE-2020-3143 has a CVSS v3 base score of 7.2 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

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