CVE-2023-44019Public exploit

Remote code execution via unchecked mac length

Published Sep 27, 2023 · Updated Sep 24, 2024

Stack overflow in Tenda AC10U firmware 15.03.06.49_multi_tde01 allows remote attackers to execute code via a crafted HTTP mac parameter. GetParentControlInfo passes the user-supplied mac value into a stack buffer without checking its length, so an oversized HTTP POST overwrites the stack. The endpoint accepts unauthenticated requests from an adjacent network; exploitation can crash httpd or yield a root shell.

CVSS severity8.8
High
EPSS probability0.91%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack overflow in Tenda AC10U firmware 15.03.06.49_multi_tde01 allows remote attackers to execute code via a crafted HTTP mac parameter. GetParentControlInfo passes the user-supplied mac value into a stack buffer without checking its length, so an oversized HTTP POST overwrites the stack. The endpoint accepts unauthenticated requests from an adjacent network; exploitation can crash httpd or yield a root shell.

The record

CVE
CVE-2023-44019
Published
Sep 27, 2023
Updated
Sep 24, 2024
Vendor
Shenzhen Tenda Technology Co., Ltd.
Product
Tenda AC10U Firmware
Classifications
CWE-121, CWE-119, T1190
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 27, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 24, 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=15.03.06.49_multi_tde01

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Shenzhen Tenda Technology Co., Ltd. · Tenda AC10U Firmwareversion=15.03.06.49_multi_tde01

Published CVSS scores

8.8CISA-ADPCVSS:3.1/AV:A/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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1190Exploit Public-Facing Application

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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