// For flags

CVE-2023-3725

Potential buffer overflow vulnerability in the Zephyr CANbus subsystem

Severity Score

9.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

Potential buffer overflow vulnerability in the Zephyr CAN bus subsystem

Posible vulnerabilidad de desbordamiento del búfer en el subsistema Zephyr CAN bus

Zephyr RTOS versions 3.5.0 and below suffer from a multitude of buffer overflow vulnerabilities.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2023-07-17 CVE Reserved
  • 2023-10-06 CVE Published
  • 2025-02-13 CVE Updated
  • 2025-02-13 First Exploit
  • 2025-04-15 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
  • CWE-121: Stack-based Buffer Overflow
  • CWE-787: Out-of-bounds Write
CAPEC
  • CAPEC-100: Overflow Buffers
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Zephyrproject
Search vendor "Zephyrproject"
 Zephyr
Search vendor "Zephyrproject" for product "Zephyr"
 <= 3.4.0
Search vendor "Zephyrproject" for product "Zephyr" and version " <= 3.4.0"
-
Affected