CVE-2024-34943Network attack vector

Memory corruption via oversized page parameter

Published May 10, 2024 · Updated Feb 13, 2025

Stack-based buffer overflow in Tenda FH1206 1.2.0.8(8155)_EN allows remote attackers to corrupt memory via a crafted page parameter. The fromNatStaticSetting handler processes the page value at ip/goform/NatStaticSetting without enforcing the destination stack buffer's bounds. The endpoint is reachable without authentication or user interaction, and successful exploitation executes code or crashes the router.

CVSS severity9.8
Critical
EPSS probability0.94%
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 Tenda FH1206 1.2.0.8(8155)_EN allows remote attackers to corrupt memory via a crafted page parameter. The fromNatStaticSetting handler processes the page value at ip/goform/NatStaticSetting without enforcing the destination stack buffer's bounds. The endpoint is reachable without authentication or user interaction, and successful exploitation executes code or crashes the router.

The record

CVE
CVE-2024-34943
Published
May 10, 2024
Updated
Feb 13, 2025
Vendor
Shenzhen Tenda Technology Co., Ltd.
Product
FH1206
Classifications
CWE-121, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 10, 2024CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 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=1.2.0.8(8155)_EN

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Shenzhen Tenda Technology Co., Ltd. · FH1206version=1.2.0.8(8155)_EN

Published CVSS scores

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.

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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 exploitUnconfirmed

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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