CVE-2022-32449
CWE-77Published: July 7, 2022· Updated: Jun 17, 2026
Official Description
TOTOLINK EX300_V2 V4.0.3c.7484 was discovered to contain a command injection vulnerability via the langType parameter in the setLanguageCfg function. This vulnerability is exploitable via a crafted MQTT data packet.
Risk Analysis
TOTOLINK EX300_V2 firmware is vulnerable to command injection via the langType parameter, which can be triggered by a crafted MQTT packet. This critical flaw allows remote attackers to execute arbitrary commands on the device.
No public exploit is currently known for this vulnerability, and it is not in the CISA KEV catalog.
Update the device firmware to a version later than 4.0.3c.7484 to remediate the vulnerability.
Technical Analysis
CVE-2022-32449 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-77)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2022-32449 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts