CVE-2021-3625 — CRITICAL (9.6)

Vulnerability Description

Buffer overflow in Zephyr USB DFU DNLOAD. Zephyr versions >= v2.5.0 contain Heap-based Buffer Overflow (CWE-122). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-c3gr-hgvr-f363

CVSS Score

9.6

CRITICAL

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

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality

LOW

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Zephyrproject	Zephyr	>= 2.5.0, < 2.7.0

Related Weaknesses (CWE)

CWE-122 CWE-787

References

http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-c3gr-hgvr-fExploitThird Party Advisory
http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-c3gr-hgvr-fExploitThird Party Advisory

FAQ

What is CVE-2021-3625?

CVE-2021-3625 is a vulnerability with a CVSS score of 9.6 (CRITICAL). Buffer overflow in Zephyr USB DFU DNLOAD. Zephyr versions >= v2.5.0 contain Heap-based Buffer Overflow (CWE-122). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/adviso...

How severe is CVE-2021-3625?

CVE-2021-3625 has been rated CRITICAL with a CVSS base score of 9.6/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-3625?

Check the references section above for vendor advisories and patch information. Affected products include: Zephyrproject Zephyr.