A heap-based buffer overflow in a network service in Fastweb FASTGate MediaAccess…
Priority HIGH 72CWE-787Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
A heap-based buffer overflow in a network service in Fastweb FASTGate MediaAccess FGA2130FWB, firmware version 18.3.n.0482_FW_230_FGA2130, and DGA4131FWB, firmware version up to 18.3.n.0462_FW_261_DGA4131, allows a remote attacker to reboot the device through a crafted HTTP request, causing DoS.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.02396 84th 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
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
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 |
|---|---|---|---|---|---|
| — | — | 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:fastweb:fastgate_vdsl2_dga4131fwb_firmware:*:*:*:*:*:*:*:* | before 18.3.n.0482_fw_264_dga4131 | Vulnerable | Fastweb |
| cpe:2.3:h:fastweb:fastgate_vdsl2_dga4131fwb:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Fastweb |
| cpe:2.3:o:fastweb:fastgate_gpon_fga2130fwb_firmware:*:*:*:*:*:*:*:* | before 18.3.n.0482_fw_233_fga2130 | Vulnerable | Fastweb |
| cpe:2.3:h:fastweb:fastgate_gpon_fga2130fwb:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Fastweb |
- cpe:2.3:o:fastweb:fastgate_vdsl2_dga4131fwb_firmware:*:*:*:*:*:*:*:* Versions before 18.3.n.0482_fw_264_dga4131 Vulnerable ·Fastweb
- cpe:2.3:h:fastweb:fastgate_vdsl2_dga4131fwb:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Fastweb
- cpe:2.3:o:fastweb:fastgate_gpon_fga2130fwb_firmware:*:*:*:*:*:*:*:* Versions before 18.3.n.0482_fw_233_fga2130 Vulnerable ·Fastweb
- cpe:2.3:h:fastweb:fastgate_gpon_fga2130fwb:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Fastweb
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2022-30114
- 2026-10-03 Alias added: GHSA-5jj2-h237-mh3w
References
More Fastweb Fastgate Gpon Fga2130fwb Firmware vulnerabilities
- TI-2020-10687 Fastweb FASTGate GPON FGA2130FWB devices through 2020-05-26 allow CSRF via the router… CVSS 3.1HIGH 8.8
Sources
- CVE-2022-30114 · CVE Program
- CVE-2022-30114 · NVD
- FIRST EPSS
- GHSA-5jj2-h237-mh3w · 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