CVE-2018-16598 json
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 WH…
published 2018-12-06 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-8405
- cvss
- 5.9
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.5%
- EPSS 1.5% chance of exploitation in 30 days, percentile 74%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
Exploit prediction
1.52% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 5.9 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-441 Unintended Proxy or Intermediary
References
-
blog.zimperium.com
/freertos-tcpip-stack-vulnerabilities-details/
patch, third-party-advisory
-
github.com
/aws/amazon-freertos/blob/v1.3.2/CHANGELOG.md
release-notes, third-party-advisory
-
blog.zimperium.com
/freertos-tcpip-stack-vulnerabilities-put-wide-range-devices-risk-compromise-smart-homes-critical-infrastructu
third-party-advisory
Sources
- CVE List CVE-2018-16598
- NVD CVE-2018-16598
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.