What is CVE-2020-15416?

CVE-2020-15416 is a high-severity vulnerability in NETGEAR R6700, classified under Stack-based Buffer Overflow. CVSS score: 8.8/10. Published 2020-07-28.

How severe is CVE-2020-15416?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2020-15416 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in NETGEAR R6700

CVE-2020-15416

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of NETGEAR R6700 V1.0.4.84_10.0.58 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the httpd service, which listens on TCP port 80 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 root. Was ZDI-CAN-9703.

Vulnerability class: Buffer Overflow

EPSS: 0.064 (93.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Netgear R6700 — versions V1.0.4.84_10.0.58
Netgear R6700_firmware — versions 1.0.4.84_10.0.58

Weakness classification (CWE)

CWE-121 — Stack-based Buffer Overflow

Public proof-of-concept exploits

References

zdi-disclosures@trendmicro.com (VDB Entry, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-15416?: CVE-2020-15416 is a high-severity vulnerability in NETGEAR R6700, classified under Stack-based Buffer Overflow. CVSS score: 8.8/10. Published 2020-07-28.
How severe is CVE-2020-15416?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2020-15416 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.