CVE-2022-28494
CWE-78Published: March 23, 2023· Updated: Jun 17, 2026
Official Description
TOTOLink outdoor CPE CP900 V6.3c.566_B20171026 is discovered to contain a command injection vulnerability in the setUpgradeFW function via the filename parameter. This vulnerability allows attackers to execute arbitrary commands via a crafted request.
Risk Analysis
TOTOLink CP900 firmware contains a command injection vulnerability in the firmware upgrade function. This critical flaw allows remote, unauthenticated attackers to execute arbitrary system commands by sending a crafted request.
There is no public exploit known for this issue, and it is not included in the CISA KEV catalog.
Users should update the device firmware to a version that addresses this vulnerability or restrict access to the management interface.
Technical Analysis
CVE-2022-28494 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 (4)
Quick Facts
Related CVEs (CWE-78)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2022-28494 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts