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01 Record

CVE-2020-13602

Remote Denial of Service in LwM2M do_write_op_tlv

MediumPUBLISHEDCNA: zephyr
CNA base score4.0 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

02 Description

Remote Denial of Service in LwM2M do_write_op_tlv

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
0.29% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 22.2% of scored records. A rank, not a probability.
NVD base score
5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2021-05-24 21:40Z5 YR AGO
Last updated
2024-09-17 02:56Z2 YR AGO
Reserved
2020-05-26
Assigning CNA
zephyr
Record state
PUBLISHED
Severity
Medium (CVSS 4.0)
CNA CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weaknesses
  • CWE-20Improper Input ValidationClass
  • CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')Base
Data version
5.1
Document digest
d6c62b837b23f7041721ae75b4fdb44932baeece5fb41e295974f89a44f14a62

05 Affected products

VendorProductVersionsPlatforms
zephyrproject-rtoszephyr1.14.2 to < unspecified, 2.2.0 to < unspecified—

06 References