Linksys RE6250/RE6300/RE6350/RE6500/RE7000/RE9000 qosClassifier stack-based overflow
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linksys | RE6250 | 1.0.013.001; 1.0.04.001; 1.0.04.002; 1.1.05.003; 1.2.07.001 | — | No fix listed | CNA |
| Linksys | RE6300 | 1.0.013.001; 1.0.04.001; 1.0.04.002; 1.1.05.003; 1.2.07.001 | — | No fix listed | CNA |
| Linksys | RE6350 | 1.0.013.001; 1.0.04.001; 1.0.04.002; 1.1.05.003; 1.2.07.001 | — | No fix listed | CNA |
| Linksys | RE6500 | 1.0.013.001; 1.0.04.001; 1.0.04.002; 1.1.05.003; 1.2.07.001 | — | No fix listed | CNA |
| Linksys | RE7000 | 1.0.013.001; 1.0.04.001; 1.0.04.002; 1.1.05.003; 1.2.07.001 | — | No fix listed | CNA |
| Linksys | RE9000 | 1.0.013.001; 1.0.04.001; 1.0.04.002; 1.1.05.003; 1.2.07.001 | — | No fix listed | CNA |
- RE6250 VendorLinksys Affected 1.0.013.001; 1.0.04.001; 1.0.04.002; 1.1.05.003; 1.2.07.001 Fixed in — No fix listed CNA
- RE6300 VendorLinksys Affected 1.0.013.001; 1.0.04.001; 1.0.04.002; 1.1.05.003; 1.2.07.001 Fixed in — No fix listed CNA
- RE6350 VendorLinksys Affected 1.0.013.001; 1.0.04.001; 1.0.04.002; 1.1.05.003; 1.2.07.001 Fixed in — No fix listed CNA
- RE6500 VendorLinksys Affected 1.0.013.001; 1.0.04.001; 1.0.04.002; 1.1.05.003; 1.2.07.001 Fixed in — No fix listed CNA
- RE7000 VendorLinksys Affected 1.0.013.001; 1.0.04.001; 1.0.04.002; 1.1.05.003; 1.2.07.001 Fixed in — No fix listed CNA
- RE9000 VendorLinksys Affected 1.0.013.001; 1.0.04.001; 1.0.04.002; 1.1.05.003; 1.2.07.001 Fixed in — No fix listed CNA
CPE configurations NVD · 12
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linksys:re6250_firmware:1.0.04.001:*:*:*:*:*:*:* | 1.0.04.001 | Vulnerable | Linksys |
| cpe:2.3:h:linksys:re6250:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Linksys |
| cpe:2.3:o:linksys:re6300_firmware:1.2.07.001:*:*:*:*:*:*:* | 1.2.07.001 | Vulnerable | Linksys |
| cpe:2.3:h:linksys:re6300:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Linksys |
| cpe:2.3:o:linksys:re6350_firmware:1.0.04.001:*:*:*:*:*:*:* | 1.0.04.001 | Vulnerable | Linksys |
| cpe:2.3:h:linksys:re6350:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Linksys |
| cpe:2.3:o:linksys:re7000_firmware:1.1.05.003:*:*:*:*:*:*:* | 1.1.05.003 | Vulnerable | Linksys |
| cpe:2.3:h:linksys:re7000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Linksys |
| cpe:2.3:o:linksys:re9000_firmware:1.0.04.002:*:*:*:*:*:*:* | 1.0.04.002 | Vulnerable | Linksys |
| cpe:2.3:h:linksys:re9000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Linksys |
- cpe:2.3:o:linksys:re6250_firmware:1.0.04.001:*:*:*:*:*:*:* Versions 1.0.04.001 Vulnerable ·Linksys
- cpe:2.3:h:linksys:re6250:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Linksys
- cpe:2.3:o:linksys:re6300_firmware:1.2.07.001:*:*:*:*:*:*:* Versions 1.2.07.001 Vulnerable ·Linksys
- cpe:2.3:h:linksys:re6300:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Linksys
- cpe:2.3:o:linksys:re6350_firmware:1.0.04.001:*:*:*:*:*:*:* Versions 1.0.04.001 Vulnerable ·Linksys
- cpe:2.3:h:linksys:re6350:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Linksys
- cpe:2.3:o:linksys:re7000_firmware:1.1.05.003:*:*:*:*:*:*:* Versions 1.1.05.003 Vulnerable ·Linksys
- cpe:2.3:h:linksys:re7000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Linksys
- cpe:2.3:o:linksys:re9000_firmware:1.0.04.002:*:*:*:*:*:*:* Versions 1.0.04.002 Vulnerable ·Linksys
- cpe:2.3:h:linksys:re9000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Linksys
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-9392
- 2026-10-03 Alias added: GHSA-pv94-f92x-7373
References
More Linksys Re6250 Firmware vulnerabilities
- TI-2025-12917 Linksys RE6500/RE6250/RE6300/RE6350/RE7000/RE9000 mod_form.so stack-based overflow CVSS 4.0HIGH 8.7
- TI-2025-12916 Memory corruption in Linksys RE6500 CVSS 4.0HIGH 8.7
- TI-2025-12915 Linksys RE6500/RE6250/RE6300/RE6350/RE7000/RE9000 mod_form.so stack-based overflow CVSS 4.0HIGH 8.7
- TI-2025-12914 Memory corruption in Linksys RE6500 CVSS 4.0HIGH 8.7
- TI-2025-08689 Linksys RE6250/RE6300/RE6350/RE6500/RE7000/RE9000 singlePortForwardAdd stack-based overflow CVSS 4.0HIGH 8.7
- TI-2025-08688 Linksys RE6250/RE6300/RE6350/RE6500/RE7000/RE9000 portRangeForwardAdd stack-based overflow CVSS 4.0HIGH 8.7
Sources
- CVE-2025-9392 · CVE Program
- CVE-2025-9392 · NVD
- FIRST EPSS
- GHSA-pv94-f92x-7373 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences