CVE & CISA-KEV Catalog

CVE-2020-3458

MEDIUM
6.7
CVSS v3
NVD

Description

Multiple vulnerabilities in the secure boot process of Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software for the Firepower 1000 Series and Firepower 2100 Series Appliances could allow an authenticated, local attacker to bypass the secure boot mechanism. The vulnerabilities are due to insufficient protections of the secure boot process. An attacker could exploit these vulnerabilities by injecting code into specific files that are then referenced during the device boot process. A successful exploit could allow the attacker to break the chain of trust and inject code into the boot process of the device, which would be executed at each boot and maintain persistence across reboots.

How to fix

Remediation Available
adaptive security appliance softwareNVD
Affected:>= 9.14.0, < 9.14.1.15Fixed in:9.14.1.15CVE-2020-3458derived from NVD
firepower threat defenseNVD
Affected:>= 6.5.0, < 6.5.0.5Fixed in:6.5.0.5CVE-2020-3458derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityLow
Privileges RequiredHigh
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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

Exploit Intelligence

0.32%probability of exploitation in 30 days
23rdpercentile

Low risk: more likely to be exploited than 23% of all known CVEs.

References

Vendor Advisory1

Related Vulnerabilities

Other CWE-693 (Protection Mechanism Failure) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2013-2465Critical9.899%KEV + Ransom-
CVE-2024-21412High8.195%KEV + RansomFix
CVE-2013-0431Medium5.390%KEV + Ransom-
CVE-2025-40536High8.182%KEVFix
CVE-2019-1003030Critical9.976%KEV-
CVE-2025-0411High7.067%KEVFix
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Markdown

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.