HIGH

CVE-2018-16526

CVSS v3

8.1

HIGH

EPSS Score

4.4 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2018-16526 yet.

Full record on NVD

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 leak information or execute arbitrary code because of a Buffer Overflow during generation of a protocol checksum in usGenerateProtocolChecksum and prvProcessIPPacket.

Technical details

Published: 2018-12-06

Frequently asked questions

What is CVE-2018-16526?

Is CVE-2018-16526 actively exploited?

Active exploitation of CVE-2018-16526 has not been confirmed. Its EPSS score was 4.4% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-16526?

CVE-2018-16526 has a CVSS v3 base score of 8.1 (HIGH severity).

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