CVE-2025-7088: A vulnerability, which was classified as critical, was found in Belkin F9K1122 1.00.33. This affects the function formPPPoESetup of the file…

PriorityP273high8.8CVSS 3.1

AVNACLPRLUINSUCHIHAH

EPSS

8.82%

94.5th percentile

A vulnerability, which was classified as critical, was found in Belkin F9K1122 1.00.33. This affects the function formPPPoESetup of the file /goform/formPPPoESetup of the component webs. The manipulation of the argument pppUserName leads to stack-based buffer overflow. It is possible to initiate the attack 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.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
belkin	f9k1122	—	—
belkin	f9k1122_firmware	—	—

Detection & IOCsextracted from sources · hover to see the quote

url/goform/formPPPoESetup↗

snort

alert http any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS Belkin formPPPoESetup pppUserName Parameter Buffer Overflow Attempt (CVE-2025-7088, CVE-2025-11295)"; flow:established,to_server; http.method; content:"POST"; http.uri; bsize:22; content:"/goform/formPPPoESetup"; fast_pattern; http.request_body; content:"pppUserName|3d|"; pcre:"/^[^&]{100,}(?:&|$)/R"; reference:url,github.com/wudipjq/my_vuln/blob/main/Belkin/vuln_8/8.md; reference:cve,2025-7088; reference:cve,2025-11295; classtype:web-application-attack; sid:2067137; rev:1; metadata:affected_product D_Link, attack_target Networking_Equipment, tls_state plaintext, created_at 2026_01_27, cve CVE_2025_7088_CVE_2025_11295, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2026_01_27, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)

→Exploit targets HTTP POST requests to the URI /goform/formPPPoESetup with a pppUserName parameter value exceeding 100 characters (stack-based buffer overflow trigger).
→The exploit proof-of-concept is publicly available; reference the disclosure at github.com/wudipjq/my_vuln/blob/main/Belkin/vuln_8/8.md.
→MITRE mapping: Initial Access (TA0001) via Exploit Public-Facing Application (T1190).

·The Snort/Suricata rule metadata incorrectly lists affected_product as D_Link; the actual affected device is the Belkin F9K1122 version 1.00.33.
·The rule also covers CVE-2025-11295 in addition to CVE-2025-7088; detections firing on this rule may relate to either CVE.

CVSS provenance

nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvdv4.07.4HIGHCVSS: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

nvdv2.09.0CRITICALAV:N/AC:L/Au:S/C:C/I:C/A:C

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.