CVE-2021-34236 — CRITICAL (9.8)

Vulnerability Description

Buffer Overflow in Netgear R8000 Router with firmware v1.0.4.56 allows remote attackers to execute arbitrary code or cause a denial-of-service by sending a crafted POST to '/bd_genie_create_account.cgi' with a sufficiently long parameter 'register_country'.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Netgear	R8000 Firmware	1.0.4.56
Netgear	R8000	-

Related Weaknesses (CWE)

CWE-120

References

https://github.com/Davidteeri/Bug-Report/blob/main/netgear-8000.mdBroken Link
https://github.com/advisories/GHSA-vfq9-7wg3-4mjxThird Party Advisory
https://github.com/Davidteeri/Bug-Report/blob/main/netgear-8000.mdBroken Link

FAQ

What is CVE-2021-34236?

CVE-2021-34236 is a vulnerability with a CVSS score of 9.8 (CRITICAL). Buffer Overflow in Netgear R8000 Router with firmware v1.0.4.56 allows remote attackers to execute arbitrary code or cause a denial-of-service by sending a crafted POST to '/bd_genie_create_account.cg...

How severe is CVE-2021-34236?

CVE-2021-34236 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-34236?

Check the references section above for vendor advisories and patch information. Affected products include: Netgear R8000 Firmware, Netgear R8000.