CVE-2021-34982: NETGEAR Multiple Routers httpd Stack-based Buffer Overflow Remote Code Execution Vulnerability
First published: Tue May 07 2024(Updated: )
NETGEAR Multiple Routers httpd Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of multiple NETGEAR routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the httpd service, which listens on TCP port 80 by default. When parsing the strings file, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. . Was ZDI-CAN-13709.
Credit: zdi-disclosures@trendmicro.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| NETGEAR Multiple Devices |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-34982?
CVE-2021-34982 is classified as a critical vulnerability due to its potential for remote code execution.
How do I fix CVE-2021-34982?
To fix CVE-2021-34982, update your NETGEAR router firmware to the latest version provided by the manufacturer.
Who can exploit CVE-2021-34982?
Network-adjacent attackers can exploit CVE-2021-34982 without requiring authentication.
Which devices are affected by CVE-2021-34982?
CVE-2021-34982 affects multiple NETGEAR router models that utilize the httpd service.
What are the potential consequences of CVE-2021-34982?
The exploitation of CVE-2021-34982 can lead to arbitrary code execution on the affected NETGEAR routers, compromising device security.
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