CVE-2025-5934: NETGEAR Ex3700 Firmware buffer overflow (CVSS 8.8)

Description

A vulnerability was found in Netgear EX3700 up to 1.0.0.88. It has been classified as critical. Affected is the function sub_41619C of the file /mtd. The manipulation leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 1.0.0.98 is able to address this issue. It is recommended to upgrade the affected component. This vulnerability only affects products that are no longer supported by the maintainer.

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredLow

User interactionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

NETGEAR Ex3700 Firmware< 1.0.0.88

Remediation

Fixed in

NETGEAR Ex3700 Firmware≥ 1.0.0.88

References

https://github.com/xiaobor123/vul-finds/tree/main/vul-find-ex3700-netgearExploitThird Party Advisory
https://github.com/xiaobor123/vul-finds/tree/main/vul-find-ex3700-netgear#pocExploitThird Party Advisory
https://vuldb.com/?ctiid.311712Permissions RequiredVDB Entry
https://vuldb.com/?id.311712Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.588258Third Party AdvisoryVDB Entry
https://www.netgear.com/Product

Related CVEs

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Frequently asked

Is CVE-2025-5934 being actively exploited?

CVE-2025-5934 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 1.01%.

How severe is CVE-2025-5934?

CVE-2025-5934 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 1.01% probability of exploitation.

Which products are affected by CVE-2025-5934?

Affected products include NETGEAR Ex3700 Firmware.

How do I fix CVE-2025-5934?

Upgrade affected software to a fixed version, for example NETGEAR Ex3700 Firmware 1.0.0.88 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-5934 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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