Description
A vulnerability was detected in Belkin F9K1015 1.00.10. Affected by this issue is some unknown functionality of the file /goform/formL2TPSetup. The manipulation of the argument L2TPUserName results in buffer overflow. The attack may be launched remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Affected products
belkin: f9k1015 firmware; belkin: f9k1015
References7
- github.com/panda666-888/vuls/blob/main/belkin/f9k1015/formL2TPS… ExploitThird Party Advisory
- github.com/panda666-888/vuls/blob/main/belkin/f9k1015/formL2TPS… ExploitThird Party Advisory
- github.com/panda666-888/vuls/blob/main/belkin/f9k1015/formL2TPS… ExploitThird Party Advisory
- github.com/panda666-888/vuls/blob/main/belkin/f9k1015/formL2TPS… ExploitThird Party Advisory
- vuldb.com/?ctiid.327175 Permissions RequiredVDB Entry
- vuldb.com/?id.327175 Third Party AdvisoryVDB Entry
- vuldb.com/?submit.661298 Third Party AdvisoryVDB Entry
Metrics
- CVSS 3.1
-
8.8
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 4.0
-
7.4
HIGH
Score source: CNA
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 - EPSS — exploit probability
- 1% percentile: 71 · as of 9 November 2026
- CWE
- CWE-119CWE-120
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.