CVE-2025-7087
Belkin F9K1122 webs formL2TPSetup stack-based overflow
A vulnerability classified as critical was found in Belkin F9K1122 1.00.33. Affected by this vulnerability is the function formL2TPSetup of the file /goform/formL2TPSetup of the component webs. The manipulation of the argument L2TPUserName leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Belkin F9K1122 webs formL2TPSetup stack-based overflow
A vulnerability classified as critical was found in Belkin F9K1122 1.00.33. Affected by this vulnerability is the function formL2TPSetup of the file /goform/formL2TPSetup of the component webs. The manipulation of the argument L2TPUserName leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
- Record
CVE-2025-7087- CVSS 4.0
- 8.7 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P - CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R - CVSS 3.0
- 8.8 High
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R - CVSS 2.0
- 9.0
AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR - Weakness
- CWE-121, CWE-119
- Updated
- 2026-11-02
EUVDEUVD-2025-20146
A vulnerability classified as critical was found in Belkin F9K1122 1.00.33. Affected by this vulnerability is the function formL2TPSetup of the file /goform/formL2TPSetup of the component webs. The manipulation of the argument L2TPUserName leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
- Record
EUVD-2025-20146- CVSS 4.0
- 8.7 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-9qx3-rc8f-795w
A vulnerability classified as critical was found in Belkin F9K1122 1.00.33. Affected by this...
A vulnerability classified as critical was found in Belkin F9K1122 1.00.33. Affected by this vulnerability is the function formL2TPSetup of the file /goform/formL2TPSetup of the component webs. The manipulation of the argument L2TPUserName leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
- Record
GHSA-9qx3-rc8f-795w- CVSS 4.0
- 7.4 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-119
- Updated
- 2026-11-02
NVD
A vulnerability classified as critical was found in Belkin F9K1122 1.00.33. Affected by this vulnerability is the function formL2TPSetup of the file /goform/formL2TPSetup of the component webs. The manipulation of the argument L2TPUserName leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
- Record
CVE-2025-7087- CVSS 4.0
- 7.4 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 9.0 High
AV:N/AC:L/Au:S/C:C/I:C/A:C - Weakness
- CWE-119, CWE-121
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-7087 is a high vulnerability (CVSS 8.7) in Belkin F9k1122, published July 6, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 13.4%, the 96th percentile. No source names a fixed version.