What is CVE-2025-60336?

CVE-2025-60336 is a high-severity vulnerability in Totolink N600r, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2025-10-22.

How severe is CVE-2025-60336?

High severity. CVSS v3 base score is 7.5 out of 10.

NULL pointer dereference in Totolink N600r

CVE-2025-60336

A NULL pointer dereference in the sub_41773C function of TOTOLINK N600R v4.3.0cu.7866_B20220506 allows attackers to cause a Denial of Service (DoS) via a crafted HTTP request.

Published 2025-10-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.018 (77.3th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 77.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.017 · newest: 0.018 · change: +0.001

Affected products

Totolink N600r
Totolink N600r Firmware — versions 4.3.0cu.7866_b20220506

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

github.com/z472421519/BinaryAudit/blob/main/PoC/NPD/TOTOLink/sub_41773C/sub_417… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2025-60336?: CVE-2025-60336 is a high-severity vulnerability in Totolink N600r, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2025-10-22.
How severe is CVE-2025-60336?: High severity. CVSS v3 base score is 7.5 out of 10.