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CVE-2020-16138Unified Ip Conference Station 7937g Firmware Vulnerability

A denial-of-service issue in Cisco Unified IP Conference Station 7937G 1-4-4-0 through 1-4-5-7 allows attackers to remotely disable the device until it is power cycled.

Published Aug 12, 2020 · Updated Nov 21, 2024

Key Facts

Patch in the next maintenance window
  • CVE-2020-16138 is a high-severity vulnerability (CVSS 7.5 v3.1) affecting Unified Ip Conference Station 7937g Firmware (Cisco).
  • It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
  • EPSS estimates a 21% probability of exploitation in the next 30 days.
  • Fixed versions are available, including Unified Ip Conference Station 7937g Firmware <=1.4.5.7, Unified Ip Conference Station 7937g Firmware 1.4.5.7.
  • Brandefense priority: patch in the next maintenance window, because of its high severity, although no exploitation is known.

Scores

CVSS v3.1

7.5

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS (30-day exploit likelihood)

21%

Higher than 97.5% of all scored CVEs

Exploit maturity

Proof of concept

ATLAS score

34/100

Publication score, see How it works

Exploitation Verdict

KEV listed

Not listed

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

Proof of concept

Public exploit code

1

Proof-of-concept links

In-the-wild evidence

1

Reports of active use

Description

A denial-of-service issue in Cisco Unified IP Conference Station 7937G 1-4-4-0 through 1-4-5-7 allows attackers to remotely disable the device until it is power cycled. Note: We cannot prove this vulnerability exists.

Out of an abundance of caution, this CVE is being assigned to better serve our customers and ensure all who are still running this product understand that the product is end of life and should be removed or upgraded. For more information on this, and how to upgrade, refer to the CVE’s reference information

Affected Products

1 affected entries in total
ProductAffected versionsFixed in
Unified Ip Conference Station 7937g FirmwareCiscoSee advisory1.4.5.7

Patched Releases

Unified Ip Conference Station 7937g Firmware

<=1.4.5.7

Timeline

  1. Publicly disclosed

    Aug 12, 2020

  2. Last updated

    Nov 21, 2024

FAQ

Common Questions.

Is CVE-2020-16138 On Your Attack Surface?

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Figures as of Oct 20, 2026. Compiled by Brandefense technologies from public vulnerability catalogs; scoring as described in How it works.

To report an error, contact Brandefense.