CVE-2024-30601Public exploit

Authenticated router crash via unbounded time parsing

Published Mar 28, 2024 · Updated Aug 2, 2024

Stack-based buffer overflow in Tenda FH1203 firmware 2.0.1.6 allows remote authenticated users to crash the router through its web interface. In saveParentControlInfo, unrestricted %[^-] and %s conversions parse the time field into two 32-byte stack arrays without width limits. The published request carries an administrator cookie and demonstrates denial of service; no source establishes code execution.

CVSS severity8.0
High
EPSS probability0.70%
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 FH1203 firmware 2.0.1.6 allows remote authenticated users to crash the router through its web interface. In saveParentControlInfo, unrestricted %[^-] and %s conversions parse the time field into two 32-byte stack arrays without width limits. The published request carries an administrator cookie and demonstrates denial of service; no source establishes code execution.

The record

CVE
CVE-2024-30601
Published
Mar 28, 2024
Updated
Aug 2, 2024
Vendor
Shenzhen Tenda Technology Co., Ltd.
Product
FH1203 Firmware
Classifications
CWE-121, T1499
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 28, 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=2.0.1.6

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

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

Published CVSS scores

8.0CISA-ADPCVSS:3.1/AV:A/AC:L/PR:L/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)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

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

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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