CVE-2023-36356

Name: CVE-2023-36356
Creator: NVD / NIST
Published: 2023-06-22T20:15:09.78+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.7/10EPSS 0.71%

Last modified Jun 17, 2026

CVE-2023-36356 is a high-severity vulnerability rated 7.7/10 on the CVSS scale. TP-Link TL-WR940N V2/V4/V6, TL-WR841N V8, TL-WR941ND V5, and TL-WR740N V1/V2 were discovered to contain a buffer read out-of-bounds via the component /userRpm/VirtualServerRpm. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted GET request.. EPSS estimates a 0.71% chance of exploitation in the next 30 days.

Description

TP-Link TL-WR940N V2/V4/V6, TL-WR841N V8, TL-WR941ND V5, and TL-WR740N V1/V2 were discovered to contain a buffer read out-of-bounds via the component /userRpm/VirtualServerRpm. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted GET request.

Metrics

CVSS 3.1

7.7/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

EPSS Probability

0.71%

49.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-125

Affected Software

Vendor	Product	Versions
Tp-Link	Tl-Wr940n Firmware	All versions
Tp-Link	Tl-Wr841n Firmware	All versions
Tp-Link	Tl-Wr740n Firmware	All versions
Tp-Link	Tl-Wr941nd Firmware	All versions

References

https://github.com/a101e-IoTvul/iotvul/blob/main/tp-link/4/TL-WR941ND_TL-WR940N_TL-WR740N_userRpm_VirtualServerRpm.mdExploit, Third Party Advisory
https://github.com/a101e-IoTvul/iotvul/blob/main/tp-link/4/TL-WR941ND_TL-WR940N_TL-WR740N_userRpm_VirtualServerRpm.mdExploit, Third Party Advisory

Timeline

Published: Jun 22, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-36356?

How severe is CVE-2023-36356?

CVE-2023-36356 has a CVSS score of 7.7/10 (HIGH severity). The EPSS model estimates a 0.71% probability of exploitation in the next 30 days.

How do I fix CVE-2023-36356?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-36356?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST