CVE-2022-30114
CVE-2022-30114 is a high-severity vulnerability in Fastweb Fastgate Vdsl2 Dga4131fwb Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- EPSS exploit prediction: 2% (82nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: Fastweb Fastgate Vdsl2 Dga4131fwb Firmware
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2022-30114?
- 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.
- How severe is CVE-2022-30114?
- CVE-2022-30114 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2022-30114 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2022-30114?
- CVE-2022-30114 primarily affects Fastweb Fastgate Vdsl2 Dga4131fwb Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2022-30114?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2022-30114 published?
- CVE-2022-30114 was published on 2023-05-19 and last updated on 2026-06-17.
References
- https://str0ng4le.github.io/jekyll/update/2023/05/12/fastgate-bof-cve-2022-30114/
- https://www.fastweb.it/myfastweb/assistenza/guide/FASTGate/
Affected products (2)
- cpe:2.3:o:fastweb:fastgate_vdsl2_dga4131fwb_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:fastweb:fastgate_gpon_fga2130fwb_firmware:*:*:*:*:*:*:*:*
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