What is CVE-2021-20120?

CVE-2021-20120 is a high-severity vulnerability in Commscope Arris Surfboard Sb8200, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2021-10-21.

How severe is CVE-2021-20120?

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

CSRF in Commscope Arris Surfboard Sb8200

CVE-2021-20120

The administration web interface for the Arris Surfboard SB8200 lacks any protections against cross-site request forgery attacks. This means that an attacker could make configuration changes (such as changing the administrative password) without the consent of the user.

Vulnerability class: CSRF (Cross-Site Request Forgery)

EPSS: 0.005 (42.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

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

Affected products

Commscope Arris_surfboard_sb8200
Commscope Arris_surfboard_sb8200_firmware — versions ab01.02.053.01_112320_193.0a.nsh
N/a Arris Surfboard Sb8200 — versions AB01.02.053.01_112320_193.0A.NSH

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

References

vulnreport@tenable.com (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-20120?: CVE-2021-20120 is a high-severity vulnerability in Commscope Arris Surfboard Sb8200, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2021-10-21.
How severe is CVE-2021-20120?: High severity. CVSS v3 base score is 8.8 out of 10.