CVE-2024-30598

Router crash via oversized security_5g value

Published Mar 28, 2024 · Updated Aug 28, 2024

Stack-based buffer overflow in Tenda FH1203 firmware 2.0.1.6 allows remote attackers on an adjacent network to crash the router. The formWifiBasicSet function mishandles an oversized security_5g value and overflows a stack buffer. No authentication or user interaction is required, but access is limited to an adjacent network and the documented consequence is service interruption.

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

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Stack-based buffer overflow in Tenda FH1203 firmware 2.0.1.6 allows remote attackers on an adjacent network to crash the router. The formWifiBasicSet function mishandles an oversized security_5g value and overflows a stack buffer. No authentication or user interaction is required, but access is limited to an adjacent network and the documented consequence is service interruption.

The record

CVE
CVE-2024-30598
Published
Mar 28, 2024
Updated
Aug 28, 2024
Vendor
Shenzhen Tenda Technology Co., Ltd.
Product
FH1203 Firmware
Classifications
CWE-121, T1499
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 28, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 28, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=2.0.1.6

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Shenzhen Tenda Technology Co., Ltd. · FH1203 Firmwareversion=2.0.1.6

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.

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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo