CVE-2020-16139

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

79.77% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 99.6% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2020-08-12 20:10Z6 YR AGO

Last updated

2024-08-04 13:37Z2 YR AGO

Reserved

2020-07-29

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

No CWE assigned

Data version

5.1

Document digest

a6ad3ead1efc15969813fbdaeef5707e6ac866e18e0d2803e89e9d3ca0e95943

• packetstormsecurity.comhttp://packetstormsecurity.com/files/158819/Cisco-7937G-Denial-Of-Service.htmlx_refsource_MISC
• www.blacklanternsecurity.comhttps://www.blacklanternsecurity.com/2020-08-07-Cisco-Unified-IP-Conference-Station-7937G/x_refsource_MISC
• www.cisco.comhttps://www.cisco.com/c/en/us/products/collateral/collaboration-endpoints/unified-ip-phone-7940g/end_of_life_notice_c51-729487.htmlx_refsource_MISC