Security readout for executives and security teams
CVE-2020-13602 is a denial-of-service flaw in Zephyr’s LwM2M TLV write handling. Malformed input can trigger improper validation and an infinite loop, reducing availability. Business impact is most relevant for embedded or IoT products built on affected Zephyr versions where device availability matters. Likely exposure is embedded firmware using Zephyr versions in the affected lines, including 1.14.2 and 2.2.0, especially where LwM2M functionality is enabled. The bundle does not prove all downstream products or configurations are affected. Treat this as a moderate availability risk. It is most urgent for internet-connected or operationally critical embedded devices using Zephyr LwM2M. Confirm exposure before broad remediation because the provided evidence does not identify specific downstream products. Mitigation focus: Check the Zephyr GitHub advisory for fixed versions and upgrade guidance.; Inventory firmware and products using Zephyr LwM2M components.; Disable or restrict LwM2M functionality where it is not required..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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CWE-20: Exact CWE lookup
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Open ATT&CK lookupCWE-835: Exact CWE lookup
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Open ATT&CK lookupCVE-2020-13602 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CNA and ADP enrichment extracted from CVE v5
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CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L2.51.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4MediumVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source materials
- CVE List V5 sourceCVE List V5
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.