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CVE-2020-13602

Remote Denial of Service in LwM2M do_write_op_tlv

MEDIUM
5.5
CVSS Score
Published: May 24, 2021 at 09:40 PM UTC
Updated: June 17, 2026 at 02:53 AM UTC
2 products affected across 2 vendorsZephyrZephyr

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.3%

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

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Zephyr· Zephyrproject
95%
v ≤ 1.14.22.0.0 ≤ v ≤ 2.2.0
Zephyr· Zephyrproject RTOS
60%
v ≥ 1.14.2v ≥ 2.2.01.14.22.2.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_MISCThird Party Advisory
Source: [email protected]
http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-g9mg-fj58-6fqh

CVSS

5.5MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-20CWE-835

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