What is CVE-2020-3455?

CVE-2020-3455 is a medium-severity vulnerability in Cisco Firepower Extensible Operating System (Fxos), classified under Protection Mechanism Failure. CVSS score: 6.7/10. Published 2020-10-21.

How severe is CVE-2020-3455?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Vulnerability in Cisco Firepower Extensible Operating System (Fxos)

CVE-2020-3455

A vulnerability in the secure boot process of Cisco FXOS Software could allow an authenticated, local attacker to bypass the secure boot mechanisms. The vulnerability is due to insufficient protections of the secure boot process. An attack…

EPSS: 0.001 (19.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Cisco Firepower Extensible Operating System (Fxos) — versions n/a

Weakness classification (CWE)

CWE-693 — Protection Mechanism Failure

References

20201021 Cisco FXOS Software for Firepower 4100/9300 Series Appliances Secure Boot Bypass Vulnerability (vendor-advisory, x_refsource_CISCO)

Frequently asked questions

What is CVE-2020-3455?: CVE-2020-3455 is a medium-severity vulnerability in Cisco Firepower Extensible Operating System (Fxos), classified under Protection Mechanism Failure. CVSS score: 6.7/10. Published 2020-10-21.
How severe is CVE-2020-3455?: Medium severity. CVSS v3 base score is 6.7 out of 10.