CVE-2020-10063
Remote Denial of Service in CoAP Option Parsing Due To Integer Overflow
HIGH
7.5
CVSS Score
Published: June 5, 2020 at 05:37 PM UTC
Updated: June 17, 2026 at 02:47 AM UTC
2 products affected across 2 vendorsZephyrZephyr
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Severity
HIGH7.5
Exploit prediction
EPSS 2%
Description
A remote adversary with the ability to send arbitrary CoAP packets to be parsed by Zephyr is able to cause a denial of service. This issue affects: zephyrproject-rtos zephyr version 2.2.0 and later versions.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v ≤ 2.2.0
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10063
- https://github.com/zephyrproject-rtos/zephyr/pull/24435
- https://github.com/zephyrproject-rtos/zephyr/pull/24530
- https://github.com/zephyrproject-rtos/zephyr/pull/24531
- https://github.com/zephyrproject-rtos/zephyr/pull/24535
References (6)
x_refsource_MISCVendor Advisory
Source: [email protected]
https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10063x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/zephyrproject-rtos/zephyr/pull/24435x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/zephyrproject-rtos/zephyr/pull/24530x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/zephyrproject-rtos/zephyr/pull/24531x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/zephyrproject-rtos/zephyr/pull/24535x_refsource_MISCPermissions Required
Source: [email protected]
https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-55CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-190
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