How severe is CVE-2021-34978?

CVE-2021-34978 has a severity score of 8.8, which is considered high.

How can an attacker exploit CVE-2021-34978?

An attacker can exploit CVE-2021-34978 by sending a crafted SOAP request to the setupwizard.cgi page.

Is authentication required to exploit CVE-2021-34978?

No, authentication is not required to exploit CVE-2021-34978.

Where can I find more information about CVE-2021-34978?

You can find more information about CVE-2021-34978 in the reference links provided: [link1](https://kb.netgear.com/000064258/Security-Advisory-for-Vertical-Privilege-Escalation-on-Some-Routers-DSL-Modem-Routers-and-Access-Points-PSV-2021-0151-and-PSV-2021-0170?article=000064258) and [link2](https://www.zerodayinitiative.com/advisories/ZDI-21-1240/).

Vulnerability/
CVE-2021-34978

high

8.8

CWE

787 121

13/1/2022

4/8/2024

CVE-2021-34978: NETGEAR R6260 setupwizard.cgi Stack-based Buffer Overflow Remote Code Execution Vulnerability

First published: Thu Jan 13 2022(Updated: )

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6260 1.1.0.78_1.0.1 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the setupwizard.cgi page. A crafted SOAP request can trigger an overflow of a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-13511.

Credit: zdi-disclosures@trendmicro.com

Affected Software	Affected Version	How to fix
Netgear R6260 Firmware	=1.1.0.78_1.0.1
NETGEAR R6260

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Reference Links

Frequently Asked Questions

What is CVE-2021-34978?
CVE-2021-34978 is a vulnerability that allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6260 routers.
How severe is CVE-2021-34978?
CVE-2021-34978 has a severity score of 8.8, which is considered high.
How can an attacker exploit CVE-2021-34978?
An attacker can exploit CVE-2021-34978 by sending a crafted SOAP request to the setupwizard.cgi page.
Is authentication required to exploit CVE-2021-34978?
No, authentication is not required to exploit CVE-2021-34978.
Where can I find more information about CVE-2021-34978?
You can find more information about CVE-2021-34978 in the reference links provided: [link1](https://kb.netgear.com/000064258/Security-Advisory-for-Vertical-Privilege-Escalation-on-Some-Routers-DSL-Modem-Routers-and-Access-Points-PSV-2021-0151-and-PSV-2021-0170?article=000064258) and [link2](https://www.zerodayinitiative.com/advisories/ZDI-21-1240/).

collector/nvd-index
agent/weakness
agent/references
agent/type
collector/mitre-cve
source/MITRE
agent/author
agent/last-modified-date
agent/title
agent/severity
agent/first-publish-date
agent/description
agent/softwarecombine
collector/zdi-advisory
source/ZDI
alias/ZDI-21-1240
alias/ZDI-CAN-13511
alias/CVE-2021-34978
agent/software-canonical-lookup
agent/tags
agent/event
agent/trending
vendor/netgear
canonical/netgear r6260 firmware
version/netgear r6260 firmware/1.1.0.78_1.0.1
canonical/netgear r6260

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