CVE-2018-16525
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 allow remote attackers to execute arbitrary code or leak information because of a Buffer Overflow…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.44%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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 allow remote attackers to execute arbitrary code or leak information because of a Buffer Overflow during parsing of DNS\LLMNR packets in prvParseDNSReply.
- CVSS 3.0
- 8.1 HIGHCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 4.44% probability · 91th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- amazon/amazon web services freertos · amazon/freertos
- Source
- cve@mitre.org
EPSS 4.4% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://blog.zimperium.com/freertos-tcpip-stack-vulnerabilities-details/Exploit, Third Party Advisory
- https://blog.zimperium.com/freertos-tcpip-stack-vulnerabilities-put-wide-range-devices-risk-compromise-smart-homes-critical-infrastructure-systems/Third Party Advisory
- https://github.com/aws/amazon-freertos/blob/v1.3.2/CHANGELOG.mdRelease Notes, Third Party Advisory
- https://blog.zimperium.com/freertos-tcpip-stack-vulnerabilities-details/Exploit, Third Party Advisory
- https://blog.zimperium.com/freertos-tcpip-stack-vulnerabilities-put-wide-range-devices-risk-compromise-smart-homes-critical-infrastructure-systems/Third Party Advisory
- https://github.com/aws/amazon-freertos/blob/v1.3.2/CHANGELOG.mdRelease Notes, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.