Rbr750 Firmware
CVE-2021-29075
HIGH
Vulnerability Assessment
| Weakness |
CWE
ASVS 5.0
V15 - Secure Coding and Architecture Bounds checking, write limits
MITRE ATT&CK
2 techniques across 2 tactics: Execution, Privilege Escalation The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 8.4 (HIGH). Attack characteristics: adjacent network attack vector, low complexity, high privileges required, no user interaction not required. |
| Exploit ScenarioDerived | An attacker could exploit this vulnerability to write data beyond allocated buffer boundaries leading to code execution or crashes. |
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Alert meAnalysisAI
Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. Rated high severity (CVSS 8.4), this vulnerability is low attack complexity. No vendor patch available.
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).
Affects your stack
Find out whether the stacks and servers you run are on an affected version.
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
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. Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects RBW30 before 2.6.2.2, RBK852 before 3.2.17.12, RBK852 before 3.2.17.12, RBK852 before 3.2.17.12, RBR850 before 3.2.17.12, RBS850 before 3.2.17.12, RBK752 before 3.2.17.12, RBK753 before 3.2.17.12, RBK753S before 3.2.17.12, RBK754 before 3.2.17.12, RBR750 before 3.2.17.12, and RBS750 before 3.2.17.12. Affected products include: Netgear Rbw30 Firmware, Netgear Rbk852 Firmware, Netgear Rbk853 Firmware, Netgear Rbk854 Firmware, Netgear Rbr850 Firmware. Version information: before 2.6.2.2.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects RBW30 before 2.6.2.2, RBK852 before 3.2.17.12, RBK852 before 3.2.17.12, RBK852 before 3.2.17.12, RBR850 before 3.2.17.12, RBS850 before 3.2.17.12, RBK752 before 3.2.17.12, RBK753 before 3.2.17.12, RBK753S before 3.2.17.12, RBK754 before 3.2.17.12, RBR750 before 3.2.17.12, and RBS750 before 3.2.17.12.
Threat Intelligence Overview
NVD
CVE.org
EPSS
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.
Memory corruption occurs when a program writes data beyond the boundaries of allocated memory regions or accesses memory in unintended ways, violating the integrity of the process's address space.
Affected Products (CPE)NVD
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Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. Rated critical severity (CVSS
Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. Rated critical severity (CVSS
Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. Rated critical severity (CVSS
Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. Rated critical severity (CVSS
Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. Rated critical severity (CVSS
Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. Rated critical severity (CVSS
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Certain NETGEAR devices are affected by authentication bypass. Rated critical severity (CVSS 9.8), this vulnerability is
GitHub PoC
Exploit-DB