CVE-2022-34604Public exploitNetwork attack vector

Unauthenticated code execution via unbounded INTF copy

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 INTF in /dotrace.asp. The trace handler passes bytes between INTF= and the next ampersand to strncpy into a stack array without bounding the copy to that array. The published request reaches the HTTP endpoint without authentication; oversized input corrupts the stack, and the demonstrated consequence is a root shell.

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 INTF in /dotrace.asp. The trace handler passes bytes between INTF= and the next ampersand to strncpy into a stack array without bounding the copy to that array. The published request reaches the HTTP endpoint without authentication; oversized input corrupts the stack, and the demonstrated consequence is a root shell.

The record

CVE
CVE-2022-34604
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

9.8NVDCVSS: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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