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Cp300 Firmware CVE-2023-36955

CRITICAL
Out-of-bounds Write (CWE-787)
2023-10-16 cve@mitre.org
Memory Corruption Buffer Overflow Cp300 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
Oct 16, 2023 - 06:15 nvd
CRITICAL 9.8

DescriptionNVD

TOTOLINK CP300+ <=V5.2cu.7594_B20200910 was discovered to contain a stack overflow via the File parameter in the function UploadCustomModule.

AnalysisAI

TOTOLINK CP300+ <=V5.2cu.7594_B20200910 was discovered to contain a stack overflow via the File parameter in the function UploadCustomModule. 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. TOTOLINK CP300+ <=V5.2cu.7594_B20200910 was discovered to contain a stack overflow via the File parameter in the function UploadCustomModule. Affected products include: Totolink Cp300\+ 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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Same technique Memory Corruption

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CVE-2015-5119 CRITICAL POC
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CVE-2012-1889 HIGH POC
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CVE-2023-36955 vulnerability details – vuln.today
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