Is CVE-2022-38556 actively exploited?

No active exploitation of CVE-2022-38556 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2022-38556 be exploited remotely?

Yes. CVE-2022-38556 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2022-38556?

CVE-2022-38556 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2022-38556

CWE-287Published: August 28, 2022· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Trendnet TEW733GR v1.03B01 contains a Static Default Credential vulnerability in /etc/init0.d/S80telnetd.sh.

NVD Source

Risk Analysis

Trendnet TEW733GR firmware uses static default credentials, posing a critical security risk. Unauthenticated attackers can leverage this to gain unauthorized administrative access to the device.

No public exploit is known, but the vulnerability is remotely exploitable with low complexity.

Recommended Action

Change all default credentials and upgrade to the latest firmware version provided by the manufacturer.

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-2022-38556 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.

From a weakness classification perspective (CWE-287): Authentication bypass vulnerabilities allow attackers to access protected resources without valid credentials.