CVE-2022-34602Public exploitNetwork attack vector

Unauthenticated code execution via undersized stack buffer

Published Jul 20, 2022 · Updated Aug 3, 2024

Stack-based buffer overflow in H3C Magic R200 firmware R200V200R004L02 allows remote attackers to execute code via a crafted HTTP request. The ipqos_lanip_editlist handler passes a delimited param value to getElement, which can copy up to 64 bytes into the 20-byte V6 stack buffer. The public proof of concept reaches /goform/aspForm without authentication, and the researcher reports stable root-shell execution.

CVSS severity9.8
Critical
EPSS probability1.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in H3C Magic R200 firmware R200V200R004L02 allows remote attackers to execute code via a crafted HTTP request. The ipqos_lanip_editlist handler passes a delimited param value to getElement, which can copy up to 64 bytes into the 20-byte V6 stack buffer. The public proof of concept reaches /goform/aspForm without authentication, and the researcher reports stable root-shell execution.

The record

CVE
CVE-2022-34602
Published
Jul 20, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 20, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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-787Out-of-bounds Write
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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