Is CVE-2022-37839 actively exploited?

No active exploitation of CVE-2022-37839 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2022-37839 be exploited remotely?

Yes. CVE-2022-37839 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2022-37839?

CVE-2022-37839 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2022-37839

CWE-120Published: September 6, 2022· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

TOTOLINK A860R V4.1.2cu.5182_B20201027 is vulnerable to Buffer Overflow via Cstecgi.cgi.

NVD Source

Risk Analysis

The TOTOLINK A860R is susceptible to a buffer overflow via the Cstecgi.cgi component. This critical vulnerability can be exploited remotely to compromise the device.

No public exploit is currently known for this vulnerability, and it is not in the CISA KEV catalog.

Recommended Action

Apply the latest firmware updates provided by TOTOLINK to mitigate this risk.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2022-37839 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.