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R7800 Firmware CVE-2020-35786

MEDIUM
Classic Buffer Overflow (CWE-120)
2020-12-30 cve@mitre.org
Buffer Overflow Netgear R7800 Firmware
4.5
CVSS 3.1 · NVD
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Severity by source

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

Lifecycle Timeline

1
CVE Published
Dec 30, 2020 - 00:15 nvd
MEDIUM 4.5

DescriptionNVD

NETGEAR R7800 devices before 1.0.2.74 are affected by a buffer overflow by an authenticated user.

AnalysisAI

NETGEAR R7800 devices before 1.0.2.74 are affected by a buffer overflow by an authenticated user. Rated medium severity (CVSS 4.5), this vulnerability is low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Buffer Copy without Size Check (CWE-120), which allows attackers to overflow a buffer to corrupt adjacent memory. NETGEAR R7800 devices before 1.0.2.74 are affected by a buffer overflow by an authenticated user. Affected products include: Netgear R7800 Firmware. Version information: before 1.0.2.74.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Always validate buffer sizes before copy operations. Use bounded functions (strncpy, snprintf). Enable compiler protections.

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Same weakness CWE-120 – Classic Buffer Overflow

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CVE-2013-1331 HIGH
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CVE-2017-15222 CRITICAL POC
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CVE-2012-2763 HIGH POC
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Same technique Buffer Overflow

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CVE-2009-0927 HIGH POC
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CVE-2020-35786 vulnerability details – vuln.today
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