CVE-2025-9246: re6250 Buffer Overflow — Exploit

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.

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CVSS v3.1 Score

8.8

HIGH

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

Weakness Type (CWE)

CWE-119 Buffer Overflow

CWE-121 CWE-121

Affected Products

Vendor	Product	Versions
linksys	re6250_firmware	All
linksys	re6250	All
linksys	re6300_firmware	All
linksys	re6300	All
linksys	re6350_firmware	All
linksys	re6350	All
linksys	re7000_firmware	All
linksys	re7000	All
linksys	re9000_firmware	All
linksys	re9000	All
linksys	re6500_firmware	All
linksys	re6500	All

References

Exploits

https://github.com/wudipjq/my_vuln/blob/main/Linksys/vuln_15/15.md

Other References

https://vuldb.com/?ctiid.320777 https://vuldb.com/?id.320777 https://vuldb.com/?submit.631519 https://www.linksys.com/

Frequently Asked Questions

What is CVE-2025-9246? +

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. It has a CVSS v3.1 base score of 8.8 (HIGH).

How severe is CVE-2025-9246? +

CVE-2025-9246 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-9246? +

CVE-2025-9246 affects products from linksys, specifically: re6250, re6250_firmware, re6300, re6300_firmware, re6350, re6350_firmware, re6500, re6500_firmware, re7000, re7000_firmware, re9000, re9000_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-9246? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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