CVE-2026-5042Disclosure(belkin / f9k1122)

LOWCVSS 7.4 · HIGH

Signal is active with 4 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

A security flaw has been discovered in Belkin F9K1122 1.00.33. The affected element is the function formCrossBandSwitch of the file /goform/formCrossBandSwitch of the component Parameter Handler. The manipulation of the argument webpage results in stack-based buffer overflow. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-119CWE-121CWE-787

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

NONE

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

  • 4 mentions across 1 observed day

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 4 classified signals
  • 4 total mentions across 1 day

Affected systems

Vendors
Products
f9k1122f9k1122_firmware

2 versions affected across 2 products

Deep dive

Activity timeline4 mentions / 1d
01234Mentions · 2026-03-29: 4Technical Details · 2026-03-29: 203-29
Signal classification1 categories
Disclosure
4100.0%
Referenced assets4 URLs
Full discourse4 posts
  • CVEarity@CVEarity
    Disclosure

    ⚡ New CVE Alert: CVE-2026-5042 📊 Severity: 8.8 🚨 Risk Level: High 🧩 Affects: Multiple / Unspecified Products Reference: https://nvd.nist.gov/vuln/detail/CVE-2026-5042 #CVE-2026-5042 #CVE #High #CyberSecurity #InfoSec https://t.co/73QncdQpyk

    Post summary

    The tweet announces CVE-2026-5042 with a high severity score of 8.8 and links to the NVD entry, but offers no exploitation, patch, or technical detail information.

    0001040
    123 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-5042 A security flaw has been discovered in Belkin F9K1122 1.00.33. The affected element is the function formCrossBandSwitch of the file /goform/formCrossBandSwitch of the c… https://www.cve.org/CVERecord?id=CVE-2026-5042

    Post summary

    A new CVE (CVE‑2026‑5042) affecting Belkin F9K1122 firmware has been identified, highlighting the vulnerable function formCrossBandSwitch, but no further technical details or exploitation information are provided.

    0000086
    56.9K followersView on X
  • The Hacker Wire@TheHackerWire
    Disclosure

    🟠 CVE-2026-5042 - High A security flaw has been discovered in Belkin F9K1122 1.00.33. The affected element is the function formCrossBandSwitch of the file /goform/formCrossBandSwitch of the component Parameter Handl... https://www.thehackerwire.com/vulnerability/CVE-2026-5042/ https://t.co/8HbdJyuHDS

    Post summary

    The post announces a newly discovered vulnerability in Belkin firmware, providing some technical detail about the affected function but does not report exploitation, patches, or PoC code.

    0000040
    163 followersView on X
  • CVEFind.com@CveFindCom
    Disclosure

    [CVE-2026-5042: HIGH] Security flaw found in Belkin F9K1122 1.00.33: stack-based buffer overflow via the formCrossBandSwitch function of /goform/formCrossBandSwitch, potentially enabling remote attacks.#cve,CVE-2026-5042,#cybersecurity https://cvefind.com/CVE-2026-5042

    Post summary

    The text announces a high‑severity stack‑based buffer overflow (CVE‑2026‑5042) in Belkin F9K1122 devices, detailing the vulnerable function and remote exploitation potential, but it does not provide PoC code, exploit tools, patches, or evidence of active exploitation.

    0000053
    617 followersView on X
CPE platform detail2 entries

2 of 2 entries

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

Explore more