What is CVE-2023-36356?

CVE-2023-36356 is a high-severity vulnerability in TP-Link Tl-Wr740n, classified under Out-of-bounds Read. CVSS score: 7.7/10. Published 2023-06-22.

How severe is CVE-2023-36356?

High severity. CVSS v3 base score is 7.7 out of 10.

Out-of-bounds Read in TP-Link Tl-Wr740n

CVE-2023-36356

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.

Vulnerability class: Buffer Overflow

Published 2023-06-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.007 (52.8th percentile), scored 2026-10-19.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 52.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

github.com/a101e-IoTvul/iotvul/blob/main/tp-link/4/TL-WR941ND_TL-WR940N_TL-WR74… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2023-36356?: CVE-2023-36356 is a high-severity vulnerability in TP-Link Tl-Wr740n, classified under Out-of-bounds Read. CVSS score: 7.7/10. Published 2023-06-22.
How severe is CVE-2023-36356?: High severity. CVSS v3 base score is 7.7 out of 10.