CVE-2018-16598
mediumpriority · track · 25EPSS 0.015 · 74 %ileDEEUUSEPSS · scored 2026-10-27
An issue was discovered in Amazon Web Services (AWS) FreeRTOS through 1.3.1, FreeRTOS up to V10.0.1 (with FreeRTOS+TCP), and WITTENSTEIN WHIS Connect middleware TCP/IP component. In xProcessReceivedUDPPacket and prvParseDNSReply, any received DNS response is accepted, without confirming it matches a sent DNS request.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (17)
Products and version ranges known to be affected.
- amazon amazon web services freertos≤ 1.3.1nvdUScpe:2.3:a:amazon:amazon_web_services_freertos:*:*:*:*:*:*:*:*
advisories (1)
Vendor and ecosystem advisories describing this.
- SCA-2025-0003FreeRTOS Vulnerabilities have no impact on SICK Products2025-02-28csaf · sick_psirtDE
FreeRTOS has several known vulnerabilities and is used in various SICK products. A current analysis confirms that the identified vulnerabilities in FreeRTOS do not affect the mentioned SICK products. At this time, there is no indication of any potential risks to these SICK products.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (9)
External citations — patches, advisories, analysis.
- https://blog.zimperium.com/freertos-tcpip-stack-vulnerabilities-details/cnnvd
- https://blog.zimperium.com/freertos-tcpip-stack-vulnerabilities-put-wide-range-devices-risk-compromise-smart-homes-critical-infrastructure-systems/cnnvd
- https://github.com/aws/amazon-freertos/blob/v1.3.2/CHANGELOG.mdcnnvd
- https://blog.zimperium.com/freertos-tcpip-stack-vulnerabilities-details/enisa_euvd
- https://blog.zimperium.com/freertos-tcpip-stack-vulnerabilities-put-wide-range-devices-risk-compromise-smart-homes-critical-infrastructure-systems/enisa_euvd
- https://github.com/aws/amazon-freertos/blob/v1.3.2/CHANGELOG.mdenisa_euvd
- https://blog.zimperium.com/freertos-tcpip-stack-vulnerabilities-details/PatchThird Party Advisorynvd
- https://blog.zimperium.com/freertos-tcpip-stack-vulnerabilities-put-wide-range-devices-risk-compromise-smart-homes-critical-infrastructure-systems/Third Party Advisorynvd
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