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A18 Firmware CVE-2023-39827

HIGH
Out-of-bounds Write (CWE-787)
2023-08-14 cve@mitre.org
Memory Corruption Buffer Overflow Tenda A18 Firmware
7.5
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

1
CVE Published
Aug 14, 2023 - 21:15 nvd
HIGH 7.5

DescriptionNVD

Tenda A18 V15.13.07.09 was discovered to contain a stack overflow via the rule_info parameter in the formAddMacfilterRule function.

AnalysisAI

Tenda A18 V15.13.07.09 was discovered to contain a stack overflow via the rule_info parameter in the formAddMacfilterRule function. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Out-of-bounds Write (CWE-787), which allows attackers to write data beyond allocated buffer boundaries leading to code execution or crashes. Tenda A18 V15.13.07.09 was discovered to contain a stack overflow via the rule_info parameter in the formAddMacfilterRule function. Affected products include: Tenda A18 Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate write boundaries, use memory-safe languages, enable compiler protections (ASLR, stack canaries).

More in A18 Firmware

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9.8 Jan 09

Tenda A18 v15.13.07.09 was discovered to contain a stack overflow via the devName parameter in the formSetDeviceName fun
CVE-2023-39829 HIGH POC
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Tenda A18 V15.13.07.09 was discovered to contain a stack overflow via the wpapsk_crypto2_4g parameter in the fromSetWire
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Tenda A18 V15.13.07.09 was discovered to contain a stack overflow via the security parameter in the formWifiBasicSet fun
CVE-2022-44932 HIGH POC
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An access control issue in Tenda A18 v15.13.07.09 allows unauthenticated attackers to access the Telnet service. Rated h
CVE-2022-44931 HIGH POC
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Tenda A18 v15.13.07.09 was discovered to contain a stack overflow via the security_5g parameter at /goform/WifiBasicSet.
CVE-2026-2877 HIGH
8.8 Feb 21

Stack-based buffer overflow in Tenda A18 firmware versions up to 15.13.07.13 allows remote attackers with low privileges
CVE-2026-2876 HIGH
8.8 Feb 21

Stack overflow in Tenda A18 firmware version 15.13.07.13 allows remote attackers with low privileges to achieve complete
CVE-2024-32305 HIGH
8.8 Apr 17

Tenda A18 v15.03.05.05 firmware has a stack overflow vulnerability located via the PPW parameter in the fromWizardHandle
CVE-2025-0848 HIGH POC
7.1 Jan 30

A vulnerability was found in Tenda A18 up to 15.13.07.09. Rated high severity (CVSS 7.1), this vulnerability is remotely

Same weakness CWE-787 – Out-of-bounds Write

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CVE-2015-3113 CRITICAL POC
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CVE-2011-2462 CRITICAL POC
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CVE-2012-1889 HIGH POC
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CVE-2010-3333 HIGH POC
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CVE-2014-1761 HIGH POC
7.8
CVE-2009-3129 HIGH POC
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CVE-2021-1732 HIGH POC
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CVE-2013-3346 CRITICAL POC
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Same technique Memory Corruption

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CVE-2015-5119 CRITICAL POC
9.8
CVE-2015-3113 CRITICAL POC
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CVE-2011-2462 CRITICAL POC
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CVE-2011-0611 HIGH POC
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CVE-2014-0322 HIGH POC
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CVE-2012-1889 HIGH POC
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CVE-2012-4792 HIGH POC
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CVE-2010-3333 HIGH POC
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CVE-2023-39827 vulnerability details – vuln.today
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