CVE-2022-37842
CWE-120Published: September 6, 2022· Updated: Jun 17, 2026
Official Description
In TOTOLINK A860R V4.1.2cu.5182_B20201027, the parameters in infostat.cgi are not filtered, causing a buffer overflow vulnerability.
Risk Analysis
The TOTOLINK A860R firmware contains a buffer overflow vulnerability in infostat.cgi due to improper input filtering. This critical flaw allows remote attackers to potentially execute arbitrary code.
No public exploit is known for this vulnerability, and it is not currently listed in the CISA KEV catalog.
Ensure the device is running the latest firmware version provided by the manufacturer.
Technical Analysis
CVE-2022-37842 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-120)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2022-37842 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts