How severe is CVE-2025-60336?

CVE-2025-60336 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-60336 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-60336?

CVE-2025-60336 affects Totolink N600r Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-60336?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-60336 have an EU (EUVD) identifier?

Yes. CVE-2025-60336 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-35618.

When was CVE-2025-60336 published?

CVE-2025-60336 was published on 2025-10-22 and last updated on 2026-06-17.

CVE-2025-60336

CVE-2025-60336 is a high-severity vulnerability in Totolink N600r Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-476.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 2% (74th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-35618
Weakness: CWE-476
Affected product: Totolink N600r Firmware
Published: 2025-10-22
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2025-60336?: CVE-2025-60336 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-60336 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-60336?: CVE-2025-60336 affects Totolink N600r Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-60336?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-60336 have an EU (EUVD) identifier?: Yes. CVE-2025-60336 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-35618.
When was CVE-2025-60336 published?: CVE-2025-60336 was published on 2025-10-22 and last updated on 2026-06-17.

References

https://github.com/z472421519/BinaryAudit/blob/main/PoC/NPD/TOTOLink/sub_41773C/sub_41773C.md

Affected products (1)

cpe:2.3:o:totolink:n600r_firmware:4.3.0cu.7866_b20220506:*:*:*:*:*:*:*

More vulnerabilities in Totolink N600r Firmware

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