Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2021-3321


Integer Underflow in Zephyr in IEEE 802154 Fragment Reassembly Header Removal. Zephyr versions >= >=2.4.0 contain Integer Overflow to Buffer Overflow (CWE-680). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-w44j-66g7-xw99


Published

2021-10-12T22:15:07.967

Last Modified

2024-11-21T06:21:17.263

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

AV:A/AC:L/Au:N/C:P/I:P/A:P

  • Access Vector: ADJACENT_NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: PARTIAL
Exploitability Score

6.5

Impact Score

6.4

Weaknesses
  • Type: Secondary
    CWE-680
  • Type: Primary
    CWE-191

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System zephyrproject zephyr < 2.5.0 Yes

References