CVE-2020-16138

CVE-2020-16138 is a high-severity vulnerability in Cisco Unified Ip Conference Station 7937g Firmware with a CVSS 3.x base score of 7.5. Its EPSS exploit-prediction score of 21% places it in the 97th percentile, indicating an elevated likelihood of exploitation.

Key facts

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

Frequently asked questions

What is CVE-2020-16138?
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
How severe is CVE-2020-16138?
CVE-2020-16138 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2020-16138 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 21% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-16138?
CVE-2020-16138 affects Cisco Unified Ip Conference Station 7937g Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-16138?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-16138 published?
CVE-2020-16138 was published on 2020-08-12 and last updated on 2026-06-17.

References

Affected products (1)

More vulnerabilities in Cisco Unified Ip Conference Station 7937g Firmware

All CVEs affecting Cisco Unified Ip Conference Station 7937g Firmware →