PT-2026-27015 · Belkin · Belkin F9K1122

Ltzhust + 1 · Published 2026-03-22 · Updated 2026-03-24 · CVE-2026-4566

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Belkin F9K1122 version 1.00.33

Description A flaw exists in Belkin F9K1122. The issue involves a stack-based buffer overflow that can be triggered by manipulating the webpage argument within the formWISP5G function located in the /goform/formWISP5G file. This allows for remote exploitation. The exploit has been published.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Buffer Overflow

Stack Overflow

Weakness Enumeration

CWE-119

CWE-121

Related Identifiers

BDU:2026-05045

CVE-2026-4566

Affected Products

Belkin F9K1122

References · 16

• 🔥 https://github.com/Litengzheng/vul_db/blob/main/Belkin/vul_151/README.md · Exploit
• 🔥 https://github.com/Litengzheng/vul_db/blob/main/Belkin/vul_151/README.md#proof-of-concept-poc · Exploit
• https://bdu.fstec.ru/vul/2026-05045 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-4566 · Security Note
• https://twitter.com/vuldb/status/2035640518810767724 · Twitter Post
• https://twitter.com/CVEarity/status/2036448222559047941 · Twitter Post
• https://vuldb.com/?id.352403 · Note
• https://dbugs.ptsecurity.com/vulnerability/PT-2026-27015 · Note
• https://twitter.com/CveFindCom/status/2035925135237042276 · Twitter Post
• https://twitter.com/CVEnew/status/2035992488490508535 · Twitter Post
• https://twitter.com/TheHackerWire/status/2035919038740893750 · Twitter Post
• https://vuldb.com/?submit.775132 · Note
• https://vuldb.com/?ctiid.352403 · Note
• https://twitter.com/cyberbivash/status/2035939147291001324 · Twitter Post
• https://anonhaven.com/en/cve/CVE-2026-4566 · Note