CVE-2025-9246: Linksys Re6250 Firmware buffer overflow (CVSS 8.8)

Description

A flaw has been found in Linksys RE6250, RE6300, RE6350, RE6500, RE7000 and RE9000 1.0.013.001/1.0.04.001/1.0.04.002/1.1.05.003/1.2.07.001. Impacted is the function check_port_conflict of the file /goform/check_port_conflict. Executing manipulation of the argument single_port_rule/port_range_rule can lead to stack-based buffer overflow. The attack can be executed remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

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

Linksys Re6250 Firmware1.0.04.001

Linksys Re6300 Firmware1.2.07.001

Linksys Re6350 Firmware1.0.04.001

Linksys Re6500 Firmware1.0.013.001

Linksys Re7000 Firmware1.1.05.003

Linksys Re9000 Firmware1.0.04.002

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

https://github.com/wudipjq/my_vuln/blob/main/Linksys/vuln_15/15.mdExploitThird Party Advisory
https://vuldb.com/?ctiid.320777Permissions Required
https://vuldb.com/?id.320777Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.631519Third Party AdvisoryVDB Entry
https://www.linksys.com/Product

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

Frequently asked

Is CVE-2025-9246 being actively exploited?

CVE-2025-9246 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.96%.

How severe is CVE-2025-9246?

CVE-2025-9246 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 0.96% probability of exploitation.

Which products are affected by CVE-2025-9246?

Affected products include Linksys Re6250 Firmware, Linksys Re6300 Firmware, Linksys Re6350 Firmware, Linksys Re6500 Firmware, Linksys Re7000 Firmware, and 1 more.

How do I fix CVE-2025-9246?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-9246 against the real software inventory on every managed device, every day. 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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