What’s Vulnerable › Vulnerabilities

CVE-2025-9392: Linksys RE6250/RE6300/RE6350/RE6500/RE7000/RE9000 qosClassifier stack-based overflow

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 5.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-08-24 · updated 2026-06-17
• Weakness: CWE-119

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.

Affected products

• Linksys Re6250 Firmware: 1.0.04.001
• Linksys Re6300 Firmware: 1.2.07.001
• Linksys Re6350 Firmware: 1.0.04.001
• Linksys Re6500 Firmware: 1.0.013.001
• Linksys Re7000 Firmware: 1.1.05.003
• Linksys Re9000 Firmware: 1.0.04.002

References

• https://github.com/wudipjq/my_vuln/blob/main/Linksys/vuln_32/32.md
• https://github.com/wudipjq/my_vuln/blob/main/Linksys/vuln_32/32.md#poc
• https://vuldb.com/?ctiid.321225
• https://vuldb.com/?id.321225
• https://vuldb.com/?submit.631537
• https://www.linksys.com/
• https://github.com/wudipjq/my_vuln/blob/main/Linksys/vuln_32/32.md
• https://github.com/wudipjq/my_vuln/blob/main/Linksys/vuln_32/32.md#poc

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