What is CVE-2024-34209?

CVE-2024-34209 is a critical-severity vulnerability in Totolink Cp450, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2024-05-14.

How severe is CVE-2024-34209?

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

Buffer overflow in Totolink Cp450

CVE-2024-34209

TOTOLINK CP450 v4.1.0cu.747_B20191224 was discovered to contain a stack buffer overflow vulnerability in the setIpPortFilterRules function.

Vulnerability class: Buffer Overflow

Published 2024-05-14 · 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: 0.009 (59.3th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 59.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Totolink Cp450
Totolink Cp450 Firmware — versions 4.1.0cu.747_b20191224

Weakness classification (CWE)

CWE-121 — Stack-based Buffer Overflow

References

github.com/n0wstr/IOTVuln/tree/main/CP450/setIpPortFilterRules (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2024-34209?: CVE-2024-34209 is a critical-severity vulnerability in Totolink Cp450, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2024-05-14.
How severe is CVE-2024-34209?: Critical severity. CVSS v3 base score is 9.8 out of 10.