CVE-2024-30623Public exploit

Service interruption via oversized DHCP page parameter

Published Mar 29, 2024 · Updated Aug 2, 2024

Stack overflow in Tenda FH1205 2.0.0.7(775) allows remote attackers to interrupt router service via a crafted DHCP-client page request. The fromDhcpListClient handler accepts an oversized page value and formats it into a fixed-size stack buffer without enforcing the destination boundary. Exploitation requires adjacent-network access but no authentication or user interaction; published impact is limited to availability.

CVSS severity6.5
Medium
EPSS probability0.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack overflow in Tenda FH1205 2.0.0.7(775) allows remote attackers to interrupt router service via a crafted DHCP-client page request. The fromDhcpListClient handler accepts an oversized page value and formats it into a fixed-size stack buffer without enforcing the destination boundary. Exploitation requires adjacent-network access but no authentication or user interaction; published impact is limited to availability.

The record

CVE
CVE-2024-30623
Published
Mar 29, 2024
Updated
Aug 2, 2024
Vendor
Shenzhen Tenda Technology Co., Ltd.
Product
FH1205
Classifications
CWE-121, T1499.004
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 29, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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?

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

  1. Affected versionversion=2.0.0.7\(775\)

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Shenzhen Tenda Technology Co., Ltd. · FH1205version=2.0.0.7\(775\)

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

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Technologies

Your stack

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Your stack

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