Stack-Based Buffer Overflow Vulnerability in NETGEAR Routers
CVE-2018-21203

8.8HIGH

Key Information:

Vendor

Netgear
Status
R6100 Firmware
Vendor
CVE Published:
28 April 2020
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What is CVE-2018-21203?

NETGEAR routers are susceptible to a stack-based buffer overflow, which can be exploited by unauthenticated attackers to potentially execute arbitrary code or cause a denial of service. Affected models include R6100, R9000, WNDR3700v4, WNDR4300, WNDR4300v2, and WNDR4500v3, under specific firmware versions. Users are urged to upgrade to the latest firmware to mitigate this vulnerability. Detailed security advisories can be found on NETGEAR's official site.

References

https://kb.netgear.com/000055146/Security-Advisory-for-Pr...
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CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2018-21203 : Stack-Based Buffer Overflow Vulnerability in NETGEAR Routers