CVE-2024-46044Public exploitNetwork attack vector

Device service interruption via oversized QoS parameter

Published Sep 13, 2024 · Updated Oct 15, 2024

Stack-based buffer overflow in Tenda CH22 Firmware 1.0.0.6(468) allows attackers to interrupt device operation via an oversized QoS parameter. The fromqossetting handler passes the POST request's user-supplied qos value to strcpy without verifying that it fits the destination stack array. Public records disagree on the access gate: NVD scores unauthenticated network access, while CISA scores adjacent authenticated access.

CVSS severity9.8
Critical
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-based buffer overflow in Tenda CH22 Firmware 1.0.0.6(468) allows attackers to interrupt device operation via an oversized QoS parameter. The fromqossetting handler passes the POST request's user-supplied qos value to strcpy without verifying that it fits the destination stack array. Public records disagree on the access gate: NVD scores unauthenticated network access, while CISA scores adjacent authenticated access.

The record

CVE
CVE-2024-46044
Published
Sep 13, 2024
Updated
Oct 15, 2024
Vendor
Shenzhen Tenda Technology Co., Ltd.
Product
CH22 Firmware
Classifications
CWE-121, CWE-787, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 13, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 15, 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=1.0.0.6\(468\)

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Shenzhen Tenda Technology Co., Ltd. · CH22 Firmwareversion=1.0.0.6\(468\)

Published CVSS scores

5.7CISA-ADPCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
9.8NVDCVSS: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
CWE-787Out-of-bounds Write
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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