Is CVE-2023-31986 actively exploited?

No active exploitation of CVE-2023-31986 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-31986 be exploited remotely?

Yes. CVE-2023-31986 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-31986?

CVE-2023-31986 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2023-31986

CWE-77Published: May 15, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

A Command Injection vulnerability in Edimax Wireless Router N300 Firmware BR-6428NS_v4 allows attacker to execute arbitrary code via the setWAN function in /bin/webs without any limitations.

NVD Source

Risk Analysis

Edimax Wireless Router N300 firmware contains a command injection vulnerability in the setWAN function, allowing remote attackers to execute arbitrary code. This critical flaw has a CVSS score of 9.8 and poses a significant risk to network security.

There is no known public exploit for this vulnerability, and it is not in the CISA KEV catalog. The flaw is remotely exploitable with low attack complexity.

Recommended Action

Users should apply the latest firmware updates provided by Edimax. If no update is available, disable WAN-side management access.

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-2023-31986 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.