How can this vulnerability be exploited?

This vulnerability can be exploited by network-adjacent attackers without requiring authentication.

What is the severity of CVE-2020-15635?

The severity of CVE-2020-15635 is high, with a CVSS score of 8.8.

Which NETGEAR R6700 firmware versions are affected by this vulnerability?

NETGEAR R6700 routers with firmware version 1.0.4.84_10.0.58 are affected by this vulnerability.

Vulnerability/
CVE-2020-15635

high

8.8

CWE

121

20/8/2020

24/8/2020

21/10/2023

CVE-2020-15635: NETGEAR R6700 acsd Stack-based Buffer Overflow Remote Code Execution Vulnerability

Q: What is CVE-2020-15635?

CVE-2020-15635 is a vulnerability that allows network-adjacent attackers to execute arbitrary code on NETGEAR R6700 routers.

Q: Is authentication required to exploit this vulnerability?

No, authentication is not required to exploit this vulnerability.

First published: Thu Aug 20 2020(Updated: )

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the acsd service, which listens on TCP port 5916 by default. The issue results from the lack of proper validation of 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 the admin user.

Credit: zdi-disclosures@trendmicro.com

Affected Software	Affected Version	How to fix
NETGEAR R6700
Netgear R6700 Firmware	<1.0.4.98
NETGEAR R6700	=v3

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Frequently Asked Questions

What is CVE-2020-15635?
CVE-2020-15635 is a vulnerability that allows network-adjacent attackers to execute arbitrary code on NETGEAR R6700 routers.
How can this vulnerability be exploited?
This vulnerability can be exploited by network-adjacent attackers without requiring authentication.
What is the severity of CVE-2020-15635?
The severity of CVE-2020-15635 is high, with a CVSS score of 8.8.
Which NETGEAR R6700 firmware versions are affected by this vulnerability?
NETGEAR R6700 routers with firmware version 1.0.4.84_10.0.58 are affected by this vulnerability.
Is authentication required to exploit this vulnerability?
No, authentication is not required to exploit this vulnerability.

collector/zdi-advisory
alias/ZDI-20-936
alias/ZDI-CAN-9853
alias/CVE-2020-15635
collector/nvd-index
agent/severity
agent/title
agent/weakness
agent/author
agent/references
agent/type
vendor/netgear
canonical/netgear r6700
canonical/netgear r6700 firmware
version/netgear r6700/v3

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