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Vulnerability record · CVE-2025-9392 · published 24 August 2025

CVE-2025-9392: Linksys re6250 firmware memory buffer overflow vulnerability

Linksys · Re6250 Firmware

A security vulnerability has been detected 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. This affects the function qosClassifier of the file /goform/qosClassifier. Such manipulation of the argument dir/sFromPort/sToPort/dFromPort/dToPort/protocol/layer7/dscp/remark_dscp leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

7.4 CVSS 4.0 High EPSS 4.7% · top 8.4% CWE-119 · Memory buffer overflowCWE-121 · Stack-based buffer overflow
7.4CVSS 4.0 base score, v2 9.0
4.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
6Affected product versions listed by NVD
8References, 4 tagged exploit
17 Jun 2026Last modified by NVD

Description

A security vulnerability has been detected 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. This affects the function qosClassifier of the file /goform/qosClassifier. Such manipulation of the argument dir/sFromPort/sToPort/dFromPort/dToPort/protocol/layer7/dscp/remark_dscp leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

6 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/wudipjq/my_vuln/blob/main/Linksys/vuln_32/32.md ExploitThird Party Advisory
https://github.com/wudipjq/my_vuln/blob/main/Linksys/vuln_32/32.md#poc ExploitThird Party Advisory
https://vuldb.com/?ctiid.321225 Permissions Required
https://vuldb.com/?id.321225 Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.631537 Third Party AdvisoryVDB Entry
https://www.linksys.com/ Product
https://github.com/wudipjq/my_vuln/blob/main/Linksys/vuln_32/32.md ExploitThird Party Advisory
https://github.com/wudipjq/my_vuln/blob/main/Linksys/vuln_32/32.md#poc ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2025-9392), CISA KEV, FIRST EPSS (scores of 2026-10-07). This page is refreshed as NVD updates the record.