// For flags

CVE-2021-3835

Buffer overflow in usb device class

Severity Score

8.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Buffer overflow in usb device class. Zephyr versions >= v2.6.0 contain Heap-based Buffer Overflow (CWE-122). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-fm6v-8625-99jf

Un desbordamiento de búfer en la clase de dispositivo usb. Zephyr versiones posteriores a v2.6.0 incluyéndola, contienen un desbordamiento del búfer en la región Heap de la memoria (CWE-122). Para más información, consulte https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-fm6v-8625-99jf

*Credits: N/A
CVSS Scores
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Adjacent
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
High
Availability
High
Attack Vector
Adjacent
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-09-27 CVE Reserved
  • 2022-02-07 CVE Published
  • 2024-09-17 CVE Updated
  • 2024-09-17 First Exploit
  • 2024-10-23 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-122: Heap-based Buffer Overflow
  • CWE-787: Out-of-bounds Write
CAPEC
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"
>= 2.6.0 < 2.7.1
Search vendor "Zephyrproject" for product "Zephyr" and version " >= 2.6.0 < 2.7.1"
-
Affected
Zephyrproject
Search vendor "Zephyrproject"
Zephyr
Search vendor "Zephyrproject" for product "Zephyr"
3.0.0
Search vendor "Zephyrproject" for product "Zephyr" and version "3.0.0"
rc1
Affected
Zephyrproject
Search vendor "Zephyrproject"
Zephyr
Search vendor "Zephyrproject" for product "Zephyr"
3.0.0
Search vendor "Zephyrproject" for product "Zephyr" and version "3.0.0"
rc2
Affected