CVE-2022-24942Public exploitNetwork attack vector

Remote code execution via unchecked multipart boundary copy

Published Nov 2, 2022 · Updated May 5, 2025

A heap-based buffer overflow in Silicon Labs Gecko Platform before 4.1.1.0 allows remote attackers to execute code via an HTTP request. HTTPsReq_HdrParse calculates a multipart/form-data boundary length from attacker-controlled pointers and passes it to Str_Copy_N without checking the destination's maximum size. The HTTP Server component must be compiled into reachable firmware; an oversized boundary can corrupt heap memory, crash the device, or enable code execution.

CVSS severity9.8
Critical
EPSS probability2.02%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A heap-based buffer overflow in Silicon Labs Gecko Platform before 4.1.1.0 allows remote attackers to execute code via an HTTP request. HTTPsReq_HdrParse calculates a multipart/form-data boundary length from attacker-controlled pointers and passes it to Str_Copy_N without checking the destination's maximum size. The HTTP Server component must be compiled into reachable firmware; an oversized boundary can corrupt heap memory, crash the device, or enable code execution.

The record

CVE
CVE-2022-24942
Published
Nov 2, 2022
Updated
May 5, 2025
Vendor
Silicon Laboratories
Product
Gecko Platform
Classifications
CWE-122, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 2, 2022CVE publishedPublication date reported by the CVE source.
  2. May 5, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <4.1.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Silicon Laboratories · Gecko Platformversion=0 <4.1.1.0

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.1Silicon LabsCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-122Heap-based Buffer Overflow
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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