CVE-2026-5608Disclosure(belkin / f9k1122)

LOWCVSS 7.4 · HIGH

Exploit discussion active in current signal (5 latest mentions)

Immediate actions

  • Hunt for exploitation attempts and persistence artifacts
  • Increase monitoring for publicly documented tradecraft
  • Track advisory updates for patch or workaround availability

Recommended action window: High priority (within 72h)

NVD description

A vulnerability was detected in Belkin F9K1122 1.00.33. Affected is the function formWlanSetup of the file /goform/formWlanSetup. The manipulation of the argument webpage results in stack-based buffer overflow. The attack may be performed from remote. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

1.5/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-119CWE-121

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • f9k1122
  • f9k1122_firmware

Threat summary

  • Public PoC is present in monitored signal
  • 6 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • PoC mentioned or linked in 2 signals
  • Technical details provided in 5 signals
  • Disclosure: 4 classified signals
  • Exploit: 1 classified signal
  • Peaked at 5 mentions on most recent observed day (2026-04-06)
  • 6 total mentions across 2 days

Affected systems

Vendors
Products
f9k1122f9k1122_firmware

2 versions affected across 2 products

Deep dive

Activity timeline6 mentions / 2d
01345Mentions · 2026-04-05: 1Mentions · 2026-04-06: 5PoC Mentioned / Linked · 2026-04-06: 2Technical Details · 2026-04-06: 504-0504-06
Signal classification3 categories
Disclosure
466.7%
Exploit
116.7%
PoC
116.7%
Referenced assets6 URLs
Classification over time
DateTotalLabels
2026-04-051
Disclosure1
2026-04-065
Disclosure3Exploit1PoC1
Full discourse6 posts
  • cybersecuritypath@cybrsecpath
    PoC

    Belkin F9K1122 Buffer Overflow CVE-2026-5608 Exploitable https://thecybrdef.com/belkin-f9k1122-buffer-overflow-cve-2026-5608-exploit/ https://t.co/Rf1a9kEhIM

    Post summary

    The post announces a buffer overflow in Belkin F9K1122 (CVE‑2026‑5608) and provides a link likely containing a proof‑of‑concept exploit, but makes no claims about active attacks, patches, or tool availability.

    0000039
    3 followersView on X
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-5608 A vulnerability was detected in Belkin F9K1122 1.00.33. Affected is the function formWlanSetup of the file /goform/formWlanSetup. The manipulation of the argument webpa… https://www.cve.org/CVERecord?id=CVE-2026-5608 ----- Traducción: CVE-2026-5608 Se … http://infoflow.cloud`

    Post summary

    The post announces a newly detected vulnerability (CVE‑2026‑5608) in Belkin F9K1122, providing a brief technical overview but no PoC, exploit, patch, or evidence of active exploitation.

    0000035
    67 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-5608 A vulnerability was detected in Belkin F9K1122 1.00.33. Affected is the function formWlanSetup of the file /goform/formWlanSetup. The manipulation of the argument webpa… https://www.cve.org/CVERecord?id=CVE-2026-5608

    Post summary

    A new CVE (CVE-2026-5608) affecting Belkin F9K1122 devices has been identified, involving manipulation of the formWlanSetup function's webpa arguments.

    00000393
    57.0K followersView on X
  • The Hacker Wire@TheHackerWire
    Disclosure

    🟠 CVE-2026-5608 - High A vulnerability was detected in Belkin F9K1122 1.00.33. Affected is the function formWlanSetup of the file /goform/formWlanSetup. The manipulation of the argument webpage results in stack-base... https://www.thehackerwire.com/vulnerability/CVE-2026-5608/ https://t.co/hElDwEcxNn

    Post summary

    The post announces detection of CVE‑2026‑5608 in a Belkin device, noting the impacted function and a stack‑based issue, but does not provide a PoC, exploit code, or patch details.

    0000047
    164 followersView on X
  • CVEFind.com@CveFindCom
    Exploit

    [CVE-2026-5608: HIGH] Critical stack-based buffer overflow vulnerability in Belkin F9K1122 1.00.33 discovered. Attackers can exploit remotely with public exploit available. Vendor ignored disclosure.#cve,CVE-2026-5608,#cybersecurity https://cvefind.com/CVE-2026-5608

    Post summary

    The post announces a critical stack-based buffer overflow in a Belkin device, noting that attackers can remotely exploit it via a publicly available exploit; no patch or mitigation is mentioned.

    0000063
    619 followersView on X
  • VulDB 🛡@vuldb
    Disclosure

    The severity is increased for this new vulnerability affecting Belkin F9K1122 (CVE-2026-5608) https://vuldb.com/vuln/355399

    Post summary

    The post announces that the severity rating for CVE-2026-5608 in the Belkin F9K1122 model has been raised, with no additional technical or exploitation details.

    0000083
    2.1K followersView on X
CPE platform detail2 entries

2 of 2 entries

PartVendorProductVersionTarget SWTarget HW
HWbelkinf9k1122---
OSbelkinf9k1122_firmware1.00.33--

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