What is CVE-2023-43201?

CVE-2023-43201 is a critical-severity vulnerability in Dlink Di-7200g, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2023-09-20.

How severe is CVE-2023-43201?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Dlink Di-7200g

CVE-2023-43201

D-Link device DI-7200GV2.E1 v21.04.09E1 was discovered to contain a stack overflow via the hi_up parameter in the qos_ext.asp function.

Vulnerability class: Buffer Overflow

Published 2023-09-20 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.011 (64.4th percentile), scored 2026-10-30.

Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 64.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Dlink Di-7200g — versions 2.e1
Dlink Di-7200g Firmware — versions 21.04.09e1

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

www.dlink.com/en/security-bulletin/ (Vendor Advisory)
github.com/Archerber/bug_submit/blob/main/D-Link/DI-7200GV2/bug2.md (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2023-43201?: CVE-2023-43201 is a critical-severity vulnerability in Dlink Di-7200g, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2023-09-20.
How severe is CVE-2023-43201?: Critical severity. CVSS v3 base score is 9.8 out of 10.