CVE-2026-5042HIGH 8.8EPSS p47.2%

CVE-2026-5042CVE-2026-5042

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.

Scoring

CVSS 3.18.8 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS0.67% probability of exploitation · percentile 47.2% · 2026-06-19T12:03:05Z
Published2026-03-29
Last modified2026-03-30

Underlying weaknesses· 3

CWE-119CWE-121CWE-787

References

  1. https://github.com/Litengzheng/vul_db/blob/main/Belkin/vul_153/README.md
  2. https://vuldb.com/submit/779123
  3. https://vuldb.com/vuln/353965
  4. https://vuldb.com/vuln/353965/cti

3

TypeTargetConfidenceTier
WeaknessImproper Restriction of Operations within the Bounds of a Memory Buffercwe-1190%live
WeaknessStack-based Buffer Overflowcwe-1210%live
WeaknessOut-of-bounds Writecwe-7870%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.