How severe is CVE-2024-37631?

CVE-2024-37631 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-37631 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-37631?

CVE-2024-37631 affects Totolink A3700r Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-37631?

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-2024-37631 have an EU (EUVD) identifier?

Yes. CVE-2024-37631 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-36778.

When was CVE-2024-37631 published?

CVE-2024-37631 was published on 2024-06-13 and last updated on 2026-06-17.

CVE-2024-37631

CVE-2024-37631 is a high-severity vulnerability in Totolink A3700r Firmware with a CVSS 3.x base score of 8.8. 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-121.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-36778
Weakness: CWE-121
Affected product: Totolink A3700r Firmware
Published: 2024-06-13
Last modified: 2026-06-17

Description

TOTOLINK A3700R V9.1.2u.6165_20211012 was discovered to contain a stack overflow via the File parameter in function UploadCustomModule.

Frequently asked questions

What is CVE-2024-37631?: TOTOLINK A3700R V9.1.2u.6165_20211012 was discovered to contain a stack overflow via the File parameter in function UploadCustomModule.
How severe is CVE-2024-37631?: CVE-2024-37631 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-37631 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-37631?: CVE-2024-37631 affects Totolink A3700r Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-37631?: 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-2024-37631 have an EU (EUVD) identifier?: Yes. CVE-2024-37631 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-36778.
When was CVE-2024-37631 published?: CVE-2024-37631 was published on 2024-06-13 and last updated on 2026-06-17.

References

https://github.com/s4ndw1ch136/IOT-vuln-reports/blob/main/TOTOLINK/A3700R/UploadCustomModule/README.md

Affected products (1)

cpe:2.3:o:totolink:a3700r_firmware:9.1.2u.6165_20211012:*:*:*:*:*:*:*

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