CVE-2022-30114

Name: CVE-2022-30114
Creator: NVD / NIST
Published: 2023-05-19T12:15:09.34+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 2.40%

Last modified Jun 17, 2026

CVE-2022-30114 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 2.40% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

2.40%

81.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Fastweb	Fastgate Vdsl2 Dga4131fwb Firmware	< 18.3.n.0482_fw_264_dga4131
Fastweb	Fastgate Gpon Fga2130fwb Firmware	< 18.3.n.0482_fw_233_fga2130

References

https://str0ng4le.github.io/jekyll/update/2023/05/12/fastgate-bof-cve-2022-30114/Exploit, Technical Description, Third Party Advisory
https://www.fastweb.it/myfastweb/assistenza/guide/FASTGate/
https://str0ng4le.github.io/jekyll/update/2023/05/12/fastgate-bof-cve-2022-30114/Exploit, Technical Description, Third Party Advisory
https://www.fastweb.it/myfastweb/assistenza/guide/FASTGate/

Timeline

Published: May 19, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-30114?

How severe is CVE-2022-30114?

CVE-2022-30114 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.40% probability of exploitation in the next 30 days.

How do I fix CVE-2022-30114?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-30114?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST