What is CVE-2023-37705?

CVE-2023-37705 is a critical-severity vulnerability in Tenda Fh1203, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2023-07-10.

How severe is CVE-2023-37705?

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

Buffer overflow in Tenda Fh1203

CVE-2023-37705

Tenda FH1203 V2.0.1.6 was discovered to contain a stack overflow via the page parameter in the fromAddressNat function.

Vulnerability class: Buffer Overflow

Published 2023-07-10 · 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: 0.012 (65.7th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 65.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000

Affected products

Tenda Fh1203
Tenda Fh1203 Firmware — versions 2.0.1.6

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

github.com/FirmRec/IoT-Vulns/tree/main/tenda/6902 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2023-37705?: CVE-2023-37705 is a critical-severity vulnerability in Tenda Fh1203, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2023-07-10.
How severe is CVE-2023-37705?: Critical severity. CVSS v3 base score is 9.8 out of 10.