Is CVE-2023-27231 actively exploited?

No active exploitation of CVE-2023-27231 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-27231 be exploited remotely?

Yes. CVE-2023-27231 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-27231?

CVE-2023-27231 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2023-27231

CRITICAL

CVE-2023-27231

CWE-77Published: March 28, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

TOTOlink A7100RU V7.4cu.2313_B20191024 was discovered to contain a command injection vulnerability via the downBw parameter at /setting/setWanIeCfg.

NVD Source

Risk Analysis

A command injection vulnerability exists in TOTOlink A7100RU firmware via the downBw parameter, enabling unauthenticated remote code execution. The critical nature of this flaw necessitates immediate attention to prevent unauthorized system control.

No public exploit is known, and it is not in the CISA KEV catalog. The vulnerability is remotely exploitable with low attack complexity.

Recommended Action

Apply the latest firmware updates from TOTOlink to ensure proper input validation and prevent command injection.

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-2023-27231 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.