CVE-2023-29696Public exploitNetwork attack vector

Remote code execution via unchecked stack copy

Published May 8, 2023 · Updated Jan 29, 2025

Stack-based buffer overflow in H3C GR-1200W MiniGRW1A0V100R006 allows remote attackers to crash the router or execute arbitrary code. The version_set handler passes the untrusted param value to strcpy, which copies it into a nine-integer stack buffer without a size check. A crafted POST request requires no privileges or user interaction; the published payload demonstrates a router crash, while control of the overflow supports arbitrary code execution.

CVSS severity9.8
Critical
EPSS probability0.93%
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 GR-1200W MiniGRW1A0V100R006 allows remote attackers to crash the router or execute arbitrary code. The version_set handler passes the untrusted param value to strcpy, which copies it into a nine-integer stack buffer without a size check. A crafted POST request requires no privileges or user interaction; the published payload demonstrates a router crash, while control of the overflow supports arbitrary code execution.

The record

CVE
CVE-2023-29696
Published
May 8, 2023
Updated
Jan 29, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1499, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 8, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 29, 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?

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
9.8CISA-ADPCVSS: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
T1499Endpoint Denial of Service
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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