Vulnerability · Published Apr 6, 2026 · Assigned by VulDB

CVE-2026-5610Belkin F9K1015 formWISP5G stack-based overflow

High 8.8

In plain English

A high-severity stack buffer overflow in F9K1015 from Belkin. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 53% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)0.7%top 46.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability has been found in Belkin F9K1015 1.00.10. Affected by this issue is the function formWISP5G of the file /goform/formWISP5G. Such manipulation of the argument webpage leads to stack-based buffer overflow. It is possible to launch 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 products (as reported)

Vendor	Product	Versions
Belkin	F9K1015	1.00.10

Weakness: CWE-121, CWE-119 · Vector: 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

References

VDB-355401 | Belkin F9K1015 formWISP5G stack-based overflow vdb-entry, technical-description
VDB-355401 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #785537 | Belkin F9K1015 1.00.10 Stack-based Buffer Overflow third-party-advisory
https://github.com/Litengzheng/vuldb_new/blob/main/Belkin%20F9K1015/vul_3/README.md exploit