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Status published
Medium
CVE-2020-13602
Remote Denial of Service in LwM2M do_write_op_tlv
Vulnerability Description
Remote Denial of Service in LwM2M do_write_op_tlv. Zephyr versions >= 1.14.2, >= 2.2.0 contain Improper Input Validation (CWE-20), Loop with Unreachable Exit Condition ('Infinite Loop') (CWE-835). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-g9mg-fj58-6fqh
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
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Affected Vendor
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View all reports →Affected Software
zephyr
Vulnerable Versions:
1.14.2, 2.2.0
Timeline
Official Publish:
May 24th, 2021
Last Modified:
September 17th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
MITRE ATT&CK TTPs
T1190
Exploit Public-Facing Application
Initial Access
T1059
Command and Scripting Interpreter
Execution
T1068
Exploitation for Privilege Escalation
Privilege Escalation
T1213
Data from Information Repositories
Collection
T1565.002
Stored Data Manipulation
Impact
T1499
Endpoint Denial of Service
Impact
T1562
Impair Defenses
Defense Evasion
T1485
Data Destruction
Impact