CVE-2018-16599
Out of bounds memory access during parsing of NBNS packets in prvTreatNBNS can be used for information disclosure.
Does this matter?
Lower severity and a low EPSS score (1.83%). Track it; it rarely justifies an emergency change on its own.
Description
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. Out of bounds memory access during parsing of NBNS packets in prvTreatNBNS can be used for information disclosure.
- CVSS 3.0
- 5.9 MEDIUMCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 1.83% probability · 79th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-200
- Affected
- amazon/amazon web services freertos · amazon/freertos
- Source
- cve@mitre.org
EPSS 1.8% 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.