Is CVE-2023-39747 actively exploited?

No active exploitation of CVE-2023-39747 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-39747 be exploited remotely?

Yes. CVE-2023-39747 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-39747?

CVE-2023-39747 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2023-39747

CWE-120Published: August 21, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

TP-Link WR841N V8, TP-Link TL-WR940N V2, and TL-WR941ND V5 were discovered to contain a buffer overflow via the radiusSecret parameter at /userRpm/WlanSecurityRpm.

NVD Source

Risk Analysis

Multiple TP-Link router models are vulnerable to a buffer overflow via the radiusSecret parameter. This allows remote attackers to execute arbitrary code on the affected devices.

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

Recommended Action

Apply the latest firmware updates provided by TP-Link for the affected models. Disable the RADIUS server feature if it is not required.

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-2023-39747 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.