CVE-2026-4566Belkin F9K1122 formWISP5G stack-based overflow
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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A flaw has been found in Belkin F9K1122 1.00.33. The affected element is the function formWISP5G of the file /goform/formWISP5G. Executing a manipulation of the argument webpage can lead to stack-based buffer overflow. The attack can be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
- CVSS
- 8.8 HIGH (v3.1, CNA)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
- Weakness (CWE)
- CWE-121, CWE-119
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulDB
- NVD analysis
- Analyzed
- Record last updated
- Mar 23, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Belkin F9K1122 belkin:f9k1122_firmware | 1.00.33 | CNA record |
belkin f9k1122_firmware belkin:f9k1122_firmware | 1.00.33 | NVD |
References
- https://vuldb.com/?id.352403vdb-entry, technical-description, third-party-advisory
- https://vuldb.com/?ctiid.352403signature, permissions-required, vdb-entry
- https://vuldb.com/?submit.775132third-party-advisory, vdb-entry
- https://github.com/Litengzheng/vul_db/blob/main/Belkin/vul_151/README.mdrelated, exploit, third-party-advisory
- https://github.com/Litengzheng/vul_db/blob/main/Belkin/vul_151/README.md#proof-of-concept-pocexploit, third-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.