CVE-2026-16248Public exploitNetwork attack vector

Authenticated service crash via unchecked NVRAM copy

Published Jul 20, 2026 · Updated Jul 20, 2026

Stack-based buffer overflow in Tenda AC10 16.03.10.09_multi_TDE01 allows remote authenticated users to crash the httpd daemon. The fromAdvSetLanip handler persists oversized LAN configuration values, then GetValue copies them into 8- or 16-byte stack buffers using the stored value's length rather than the destination capacity. Administrator access to the web management interface is required; the demonstrated consequence is a repeatable httpd process crash, while code execution remains unproven.

CVSS severity8.8
High
EPSS probability0.85%
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 AC10 16.03.10.09_multi_TDE01 allows remote authenticated users to crash the httpd daemon. The fromAdvSetLanip handler persists oversized LAN configuration values, then GetValue copies them into 8- or 16-byte stack buffers using the stored value's length rather than the destination capacity. Administrator access to the web management interface is required; the demonstrated consequence is a repeatable httpd process crash, while code execution remains unproven.

The record

CVE
CVE-2026-16248
Published
Jul 20, 2026
Updated
Jul 20, 2026
Vendor
Shenzhen Tenda Technology Co., Ltd.
Product
AC10
Classifications
CWE-119, CWE-121, T1499.004
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jul 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 20, 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=16.03.10.09_multi_TDE01

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Shenzhen Tenda Technology Co., Ltd. · AC10version=16.03.10.09_multi_TDE01

Published CVSS scores

8.8VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
9.0VulDBAV:N/AC:L/Au:S/C:C/I:C/A:C
7.4VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/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

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)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

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