CVE-2023-24139
CWE-77Published: February 3, 2023· Updated: Jun 17, 2026
Official Description
TOTOLINK CA300-PoE V6.2c.884 was discovered to contain a command injection vulnerability via the NetDiagHost parameter in the setNetworkDiag function.
Risk Analysis
This vulnerability allows for command injection in the TOTOLINK CA300-PoE via the NetDiagHost parameter. With a CVSS score of 9.8, it is considered critical as it allows unauthenticated remote attackers to execute arbitrary commands with full system impact.
There is no known public exploit for this vulnerability, and it is not currently listed in CISA KEV. It is remotely exploitable due to the network-accessible vector and low attack complexity.
Users should update the TOTOLINK CA300-PoE firmware to a version beyond 6.2c.884 if available and restrict network access to the device management interface.
Technical Analysis
CVE-2023-24139 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (2)
Quick Facts
Related CVEs (CWE-77)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-24139 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts