What is CVE-2021-27256?

CVE-2021-27256 is a high-severity vulnerability in Netgear Br200, classified under OS Command Injection. CVSS score: 8.8/10. Published 2021-03-05.

How severe is CVE-2021-27256?

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

RCE in Netgear Br200

CVE-2021-27256

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R7800 firmware version 1.0.2.76. Although authentication is required to exploit this vulnerability, the existing authentica…

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.009 (54.2th 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

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

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

Frequently asked questions

What is CVE-2021-27256?: CVE-2021-27256 is a high-severity vulnerability in Netgear Br200, classified under OS Command Injection. CVSS score: 8.8/10. Published 2021-03-05.
How severe is CVE-2021-27256?: High severity. CVSS v3 base score is 8.8 out of 10.