Unsanitized user input in the web interface for Linksys WiFi extender products (RE6400…
Priority MEDIUM 50CWE-77Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-77.
Summary
Unsanitized user input in the web interface for Linksys WiFi extender products (RE6400 and RE6300 through 1.2.04.022) allows for remote command execution. An attacker can access system OS configurations and commands that are not intended for use beyond the web UI.
Why it matters now
EPSS 0.05053 92nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linksys:re6400_firmware:*:*:*:*:*:*:*:* | up to 1.2.04.022 | Vulnerable | Linksys |
| cpe:2.3:h:linksys:re6400:1:*:*:*:*:*:*:* | 1 | Running on | Linksys |
| cpe:2.3:o:linksys:re6300_firmware:*:*:*:*:*:*:*:* | up to 1.2.04.022 | Vulnerable | Linksys |
| cpe:2.3:h:linksys:re6300:1:*:*:*:*:*:*:* | 1 | Running on | Linksys |
- cpe:2.3:o:linksys:re6400_firmware:*:*:*:*:*:*:*:* Versions up to 1.2.04.022 Vulnerable ·Linksys
- cpe:2.3:h:linksys:re6400:1:*:*:*:*:*:*:* Versions 1 Running on ·Linksys
- cpe:2.3:o:linksys:re6300_firmware:*:*:*:*:*:*:*:* Versions up to 1.2.04.022 Vulnerable ·Linksys
- cpe:2.3:h:linksys:re6300:1:*:*:*:*:*:*:* Versions 1 Running on ·Linksys
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-11535
- 2026-10-03 Alias added: GHSA-3vqc-45v8-242h
References
More Linksys Re6300 Firmware vulnerabilities
- TI-2025-08604 Linksys RE6250/RE6300/RE6350/RE6500/RE7000/RE9000 qosClassifier stack-based overflow CVSS 4.0HIGH 8.7
- 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
Sources
- CVE-2019-11535 · CVE Program
- CVE-2019-11535 · NVD
- FIRST EPSS
- GHSA-3vqc-45v8-242h · 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