What is the CVSS score of CVE-2020-13464?

CVE-2020-13464 has a CVSS 3.1 base score of 4.2 (Medium). CVSS vector: CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N. EPSS exploitation probability: 0.2%.

Cks32F103 Firmware CVE-2020-13464

MEDIUM

Missing Authorization (CWE-862)

2020-08-31 cve@mitre.org

Authentication Bypass Cks32F103 Firmware

4.2

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

4.2 MEDIUM

AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Physical

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Lifecycle Timeline

CVE Published

Aug 31, 2020 - 16:15 nvd

MEDIUM 4.2

DescriptionNVD

AnalysisAI

The flash memory readout protection in China Key Systems & Integrated Circuit CKS32F103 devices allows physical attackers to extract firmware via the debug interface by utilizing the CPU or DMA. Rated medium severity (CVSS 4.2), this vulnerability is no authentication required. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Missing Authorization (CWE-862), which allows attackers to access resources or perform actions without proper authorization checks. The flash memory readout protection in China Key Systems & Integrated Circuit CKS32F103 devices allows physical attackers to extract firmware via the debug interface by utilizing the CPU or DMA module. Affected products include: Cksic Cks32F103 Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement role-based access control, validate authorization on every request server-side, apply principle of least privilege.