Vulnerability · Published Apr 6, 2026 · Assigned by VulDB

CVE-2026-5612Belkin F9K1015 formWlEncrypt 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 was determined in Belkin F9K1015 1.00.10. This vulnerability affects the function formWlEncrypt of the file /goform/formWlEncrypt. Executing a manipulation of the argument webpage can lead to stack-based buffer overflow. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized. 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-355403 | Belkin F9K1015 formWlEncrypt stack-based overflow vdb-entry, technical-description
VDB-355403 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #785551 | Belkin F9K1015 1.00.10 Stack-based Buffer Overflow third-party-advisory
https://github.com/Litengzheng/vuldb_new/blob/main/Belkin%20F9K1015/vul_7/README.md exploit