What is the CVSS score of CVE-2023-30257?

CVE-2023-30257 has a CVSS 3.1 base score of 7.8 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.4%.

Is there a public PoC exploit available for CVE-2023-30257?

Yes, a public proof-of-concept exploit is available for CVE-2023-30257. Prioritise patching immediately. EPSS: 0.4%.

M6 Firmware CVE-2023-30257

HIGH

Classic Buffer Overflow (CWE-120)

2023-05-08 cve@mitre.org

Buffer Overflow M6 Firmware

7.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.8 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

May 08, 2023 - 01:15 nvd

HIGH 7.8

DescriptionNVD

A buffer overflow in the component /proc/ftxxxx-debug of FiiO M6 Build Number v1.0.4 allows attackers to escalate privileges to root.

AnalysisAI

A buffer overflow in the component /proc/ftxxxx-debug of FiiO M6 Build Number v1.0.4 allows attackers to escalate privileges to root. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Buffer Copy without Size Check (CWE-120), which allows attackers to overflow a buffer to corrupt adjacent memory. A buffer overflow in the component /proc/ftxxxx-debug of FiiO M6 Build Number v1.0.4 allows attackers to escalate privileges to root. Affected products include: Fiio M6 Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Always validate buffer sizes before copy operations. Use bounded functions (strncpy, snprintf). Enable compiler protections.