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01 Record

CVE-2020-5756

Grandstream GWN7000 firmware version 1.0.9.4 and below allows authenticated remote users to modify the system's crontab via undocumented API. An attacker can use this functionality to execute

UnratedPUBLISHEDCNA: tenable
CNA base scoreUnratedNo CNA CVSS vector

02 Description

Grandstream GWN7000 firmware version 1.0.9.4 and below allows authenticated remote users to modify the system's crontab via undocumented API. An attacker can use this functionality to execute

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
2.47% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 84.1% of scored records. A rank, not a probability.
NVD base score
8.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/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.

04 Metadata

Published
2020-07-17 20:16Z6 YR AGO
Last updated
2024-08-04 08:39Z2 YR AGO
Reserved
2020-01-06
Assigning CNA
tenable
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-489Active Debug CodeBase
  • CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')Base
Data version
5.1
Document digest
c50aec5fc3a81284fe55c5247a74fe63aa0943c3504fe2993826ab50db494807

05 Affected products

VendorProductVersionsPlatforms
TenableGrandstream GWN7000Versions 1.0.9.4 and below—

06 References