CVE-2024-44859Public exploit

Authenticated memory corruption via oversized chkHz parameter

Published Sep 4, 2024 · Updated Sep 4, 2024

Stack buffer overflow in Tenda FH1201 Firmware 1.2.0.14 allows remote authenticated users to crash its HTTP service via a crafted request. The formWrlExtraGet handler accepts the chkHz value at /goform/WrlExtraGet without a length check, so an oversized value overwrites stack storage. Access requires low privileges from an adjacent network; the public proof of concept demonstrates service failure, not code execution.

CVSS severity8.0
High
EPSS probability0.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack buffer overflow in Tenda FH1201 Firmware 1.2.0.14 allows remote authenticated users to crash its HTTP service via a crafted request. The formWrlExtraGet handler accepts the chkHz value at /goform/WrlExtraGet without a length check, so an oversized value overwrites stack storage. Access requires low privileges from an adjacent network; the public proof of concept demonstrates service failure, not code execution.

The record

CVE
CVE-2024-44859
Published
Sep 4, 2024
Updated
Sep 4, 2024
Vendor
Shenzhen Tenda Technology Co., Ltd.
Product
FH1201 Firmware
Classifications
CWE-121, T1210
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 4, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 4, 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=1.2.0.14

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

Shenzhen Tenda Technology Co., Ltd. · FH1201 Firmwareversion=1.2.0.14

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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
T1210Exploitation of Remote Services

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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