High severity8.8NVD Advisory· Published Jan 13, 2022· Updated Jun 17, 2026
CVE-2021-34979
CVE-2021-34979
Description
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 handling of SOAP requests. When parsing the SOAPAction header, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-13512.
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Affected products
3- cpe:2.3:o:netgear:r6260_firmware:1.1.0.78_1.0.1:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
2- kb.netgear.com/000064261/Security-Advisory-for-Vertical-Privilege-Escalation-on-Some-Routers-PSV-2021-0152nvdVendor Advisory
- www.zerodayinitiative.com/advisories/ZDI-21-1241/nvdThird Party AdvisoryVDB Entry
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