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TI-2020-12694 Aliases CVE-2020-16139GHSA-8c2f-jx3v-cm8h

A denial-of-service in Cisco Unified IP Conference Station 7937G 1-4-4-0 through 1-4-5-7…

Priority HIGH 79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

A denial-of-service in Cisco Unified IP Conference Station 7937G 1-4-4-0 through 1-4-5-7 allows attackers restart the device remotely through sending specially crafted packets. 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

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.7977 99th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:cisco:unified_ip_conference_station_7937g_firmware:*:*:*:*:*:*:*:*1.4.4.0 – 1.4.5.7VulnerableCisco
cpe:2.3:h:cisco:unified_ip_conference_station_7937g:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
  • cpe:2.3:o:cisco:unified_ip_conference_station_7937g_firmware:*:*:*:*:*:*:*:* Versions 1.4.4.0 – 1.4.5.7 Vulnerable ·Cisco
  • cpe:2.3:h:cisco:unified_ip_conference_station_7937g:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-16139
  2. 2026-10-03 Alias added: GHSA-8c2f-jx3v-cm8h

References

Exploit 2

Advisory 1

  • TI-2020-12692 A privilege escalation issue in Cisco Unified IP Conference Station 7937G 1-4-4-0 through… CVSS 3.1CRITICAL 9.8
  • TI-2020-12693 A denial-of-service issue in Cisco Unified IP Conference Station 7937G 1-4-4-0 through… CVSS 3.1HIGH 7.5
  • TI-2013-03000 The Cisco Unified IP Conference Station 7937G allows remote attackers to cause a denial… CVSS 2.0MEDIUM 5.0

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences