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I21 Firmware CVE-2022-44362

CRITICAL
Out-of-bounds Write (CWE-787)
2022-12-02 cve@mitre.org
Memory Corruption Tenda Buffer Overflow I21 Firmware
9.8
CVSS 3.1 · NVD
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Severity by source

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

Lifecycle Timeline

1
CVE Published
Dec 02, 2022 - 17:15 nvd
CRITICAL 9.8

DescriptionNVD

Tenda i21 V1.0.0.14(4656) is vulnerable to Buffer Overflow via /goform/AddSysLogRule.

AnalysisAI

Tenda i21 V1.0.0.14(4656) is vulnerable to Buffer Overflow via /goform/AddSysLogRule. Rated critical severity (CVSS 9.8), 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 i21 V1.0.0.14(4656) is vulnerable to Buffer Overflow via /goform/AddSysLogRule. Affected products include: Tenda I21 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).

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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
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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
9.8
CVE-2011-2462 CRITICAL POC
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CVE-2011-0611 HIGH POC
8.8
CVE-2014-0322 HIGH POC
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CVE-2012-1889 HIGH POC
8.8
CVE-2012-4792 HIGH POC
8.8
CVE-2010-3333 HIGH POC
7.8

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CVE-2022-44362 vulnerability details – vuln.today
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