What is the CVSS score of CVE-2021-38260?

CVE-2021-38260 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: 0.3%.

Is there a public PoC exploit available for CVE-2021-38260?

Yes, a public proof-of-concept exploit is available for CVE-2021-38260. Prioritise patching immediately. EPSS: 0.3%.

Mcuxpresso Software Development Kit CVE-2021-38260

HIGH

Classic Buffer Overflow (CWE-120)

2021-10-25 cve@mitre.org

Buffer Overflow Mcuxpresso Software Development Kit

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

Oct 25, 2021 - 22:15 nvd

HIGH 7.8

DescriptionNVD

NXP MCUXpresso SDK v2.7.0 was discovered to contain a buffer overflow in the function USB_HostParseDeviceConfigurationDescriptor().

AnalysisAI

NXP MCUXpresso SDK v2.7.0 was discovered to contain a buffer overflow in the function USB_HostParseDeviceConfigurationDescriptor(). 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. NXP MCUXpresso SDK v2.7.0 was discovered to contain a buffer overflow in the function USB_HostParseDeviceConfigurationDescriptor(). Affected products include: Nxp Mcuxpresso Software Development Kit.

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.