CVE-2020-16137
CVE-2020-16137 is a critical-severity vulnerability in Cisco Unified Ip Conference Station 7937g Firmware with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 19% places it in the 97th percentile, indicating an elevated likelihood of exploitation.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 6.8
- EPSS exploit prediction: 19% (97th percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Cisco Unified Ip Conference Station 7937g Firmware
- Published:
- Last modified:
Description
A privilege escalation issue in Cisco Unified IP Conference Station 7937G 1-4-4-0 through 1-4-5-7 allows attackers to reset the credentials for the SSH administrative console to arbitrary values. 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-2020-16137?
- A privilege escalation issue in Cisco Unified IP Conference Station 7937G 1-4-4-0 through 1-4-5-7 allows attackers to reset the credentials for the SSH administrative console to arbitrary values. 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-2020-16137?
- CVE-2020-16137 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2020-16137 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 19% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-16137?
- CVE-2020-16137 affects Cisco Unified Ip Conference Station 7937g Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-16137?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2020-16137 published?
- CVE-2020-16137 was published on 2020-08-12 and last updated on 2026-06-17.
References
- https://packetstormsecurity.com/files/158818/Cisco-7937G-Privilege-Escalation.html
- https://www.blacklanternsecurity.com/2020-08-07-Cisco-Unified-IP-Conference-Station-7937G/
- https://www.cisco.com/c/en/us/products/collateral/collaboration-endpoints/unified-ip-phone-7940g/end_of_life_notice_c51-729487.html
Affected products (1)
- cpe:2.3:o:cisco:unified_ip_conference_station_7937g_firmware:*:*:*:*:*:*:*:*
More vulnerabilities in Cisco Unified Ip Conference Station 7937g Firmware
- CVE-2020-16139 — High (CVSS 7.5): A denial-of-service in Cisco Unified IP Conference Station 7937G 1-4-4-0 through 1-4-5-7 allows attackers restart the…
- CVE-2020-16138 — High (CVSS 7.5): A denial-of-service issue in Cisco Unified IP Conference Station 7937G 1-4-4-0 through 1-4-5-7 allows attackers to…
- CVE-2013-3435 — Medium (CVSS 5.0): The Cisco Unified IP Conference Station 7937G allows remote attackers to cause a denial of service (networking outage)…
All CVEs affecting Cisco Unified Ip Conference Station 7937g Firmware →