A DNS rebinding vulnerability in the Freebox OS web interface in Freebox Server before 4.2.3.
Priority MEDIUM 44CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
A DNS rebinding vulnerability in the Freebox OS web interface in Freebox Server before 4.2.3.
Why it matters now
EPSS 0.0119 68th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
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 · 10
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:free:freebox_revolution_firmware:*:*:*:*:*:*:*:* | before 4.2.3 | Vulnerable | Free |
| cpe:2.3:h:free:freebox_revolution:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Free |
| cpe:2.3:o:free:freebox_mini_firmware:*:*:*:*:*:*:*:* | before 4.2.3 | Vulnerable | Free |
| cpe:2.3:h:free:freebox_mini:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Free |
| cpe:2.3:o:free:freebox_one_firmware:*:*:*:*:*:*:*:* | before 4.2.3 | Vulnerable | Free |
| cpe:2.3:h:free:freebox_one:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Free |
| cpe:2.3:o:free:freebox_delta_firmware:*:*:*:*:*:*:*:* | before 4.2.3 | Vulnerable | Free |
| cpe:2.3:h:free:freebox_delta:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Free |
| cpe:2.3:o:free:freebox_pop_firmware:*:*:*:*:*:*:*:* | before 4.2.3 | Vulnerable | Free |
| cpe:2.3:h:free:freebox_pop:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Free |
- cpe:2.3:o:free:freebox_revolution_firmware:*:*:*:*:*:*:*:* Versions before 4.2.3 Vulnerable ·Free
- cpe:2.3:h:free:freebox_revolution:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Free
- cpe:2.3:o:free:freebox_mini_firmware:*:*:*:*:*:*:*:* Versions before 4.2.3 Vulnerable ·Free
- cpe:2.3:h:free:freebox_mini:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Free
- cpe:2.3:o:free:freebox_one_firmware:*:*:*:*:*:*:*:* Versions before 4.2.3 Vulnerable ·Free
- cpe:2.3:h:free:freebox_one:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Free
- cpe:2.3:o:free:freebox_delta_firmware:*:*:*:*:*:*:*:* Versions before 4.2.3 Vulnerable ·Free
- cpe:2.3:h:free:freebox_delta:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Free
- cpe:2.3:o:free:freebox_pop_firmware:*:*:*:*:*:*:*:* Versions before 4.2.3 Vulnerable ·Free
- cpe:2.3:h:free:freebox_pop:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Free
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-24377
- 2026-10-03 Alias added: GHSA-86qf-2vwh-94x2
References
More Freebox Delta Firmware vulnerabilities
- TI-2020-14920 A DNS rebinding vulnerability in the UPnP IGD implementations in Freebox v5 before 1.5.29… CVSS 3.1CRITICAL 9.6
- TI-2020-14917 A CSRF vulnerability in the UPnP MediaServer implementation in Freebox Server before 4.2.3. CVSS 3.1HIGH 8.8
Sources
- CVE-2020-24377 · CVE Program
- CVE-2020-24377 · NVD
- FIRST EPSS
- GHSA-86qf-2vwh-94x2 · 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