What is CVE-2024-37637?

CVE-2024-37637 is a critical-severity vulnerability in Totolink A3700r, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2024-06-14.

How severe is CVE-2024-37637?

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

Buffer overflow in Totolink A3700r

CVE-2024-37637

TOTOLINK A3700R V9.1.2u.6165_20211012 was discovered to contain a stack overflow via ssid5g in the function setWizardCfg.

Vulnerability class: Buffer Overflow

Published 2024-06-14 · 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: 0.007 (50.1th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 50.1% 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

Totolink A3700r
Totolink A3700r Firmware — versions 9.1.2u.6165_20211012

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

github.com/s4ndw1ch136/IOT-vuln-reports/blob/main/TOTOLINK/A3700R/setWizardCfg/… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2024-37637?: CVE-2024-37637 is a critical-severity vulnerability in Totolink A3700r, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2024-06-14.
How severe is CVE-2024-37637?: Critical severity. CVSS v3 base score is 9.8 out of 10.