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Rewterz Threat Advisory – CVE-2021-27253 – NETGEAR Nighthawk R7800 buffer overflow

Severity

High

Analysis Summary

CVE-2021-27253

NETGEAR Nighthawk R7800 is vulnerable to a heap-based buffer overflow, caused by a flaw the handling of the rc_service parameter provided to apply_bind.cgi. By sending a specially-crafted request, a remote attacker could overflow a buffer and execute arbitrary code on the system.

Impact

Gain Access

Affected Vendors

NETGEAR

Affected Products

NETGEAR R7800

Remediation

Refer to NETGEAR Web site for patch, upgrade or suggested workaround information.