CVE-2026-2192Public exploitNetwork attack vector

Authenticated service crash via unchecked configuration values

Published Feb 8, 2026 · Updated Feb 8, 2026

Stack-based buffer overflow in Tenda AC9 15.03.06.42_multi allows remote authenticated users to crash its web service via configuration values. The formGetRebootTimer handler passes attacker-controlled schedule-reboot start and end strings to GetValue, which writes them into 12-byte stack buffers without enforcing their length. Administrative access is required to alter the configuration; an oversized value crashes and repeatedly restarts the web service, with no demonstrated code execution.

CVSS severity7.2
High
EPSS probability0.69%
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 AC9 15.03.06.42_multi allows remote authenticated users to crash its web service via configuration values. The formGetRebootTimer handler passes attacker-controlled schedule-reboot start and end strings to GetValue, which writes them into 12-byte stack buffers without enforcing their length. Administrative access is required to alter the configuration; an oversized value crashes and repeatedly restarts the web service, with no demonstrated code execution.

The record

CVE
CVE-2026-2192
Published
Feb 8, 2026
Updated
Feb 8, 2026
Vendor
Shenzhen Tenda Technology Co., Ltd.
Product
AC9
Classifications
CWE-119, T1499.004
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Feb 8, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 8, 2026Record 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=15.03.06.42_multi

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Shenzhen Tenda Technology Co., Ltd. · AC9version=15.03.06.42_multi

Published CVSS scores

7.2VulDB CNACVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
8.3VulDB CNAAV:N/AC:L/Au:M/C:C/I:C/A:C
7.3VulDB CNACVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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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)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1499.004Application or System Exploitation

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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