CVE-2020-8797
Juplink RX4-1500 v1.0.3 allows remote attackers to gain root access to the Linux subsystem via an...
Juplink RX4-1500 v1.0.3 allows remote attackers to gain root access to the Linux subsystem via an unsanitized exec call (aka Command Line Injection), if the undocumented telnetd service is enabled and the attacker can authenticate as admin from the local network.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
Juplink RX4-1500 v1.0.3 allows remote attackers to gain root access to the Linux subsystem via an unsanitized exec call (aka Command Line Injection), if the undocumented telnetd service is enabled and the attacker can authenticate as admin from the local network.
- Record
CVE-2020-8797- CVSS 3.1
- 6.7 Medium
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.9 Medium
AV:L/AC:M/Au:N/C:C/I:C/A:C - Weakness
- CWE-78
- Updated
- 2026-11-02
CVE List No score
Juplink RX4-1500 v1.0.3 allows remote attackers to gain root access to the Linux subsystem via an unsanitized exec call (aka Command Line Injection), if the undocumented telnetd service is enabled and the attacker can authenticate as admin from the local network.
- Record
CVE-2020-8797- Updated
- 2026-11-02
EUVDEUVD-2020-29645 No score
Juplink RX4-1500 v1.0.3 allows remote attackers to gain root access to the Linux subsystem via an unsanitized exec call (aka Command Line Injection), if the undocumented telnetd service is enabled and the attacker can authenticate as admin from the local network.
- Record
EUVD-2020-29645- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-c86c-pc2p-fq87 No score
Juplink RX4-1500 v1.0.3 allows remote attackers to gain root access to the Linux subsystem via an...
Juplink RX4-1500 v1.0.3 allows remote attackers to gain root access to the Linux subsystem via an unsanitized exec call (aka Command Line Injection), if the undocumented telnetd service is enabled and the attacker can authenticate as admin from the local network.
- Record
GHSA-c86c-pc2p-fq87- Weakness
- CWE-74
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-8797 is a medium vulnerability (CVSS 6.7) in Juplink Rx4-1500 Firmware, published April 23, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.93%, the 60th percentile. No source names a fixed version.