No exploitation reported

CVE-2018-16528

No exploitation reported by the sources we read.

Published2018-12-06
WeaknessCWE-20

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Amazon Web Services (AWS) FreeRTOS through 1.3.1 allows remote attackers to execute arbitrary code because of mbedTLS context object corruption in prvSetupConnection and GGD_SecureConnect_Connect in AWS TLS connectivity modules.

Timeline

dates in UTC

2018-12-0623:29CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2018-16528?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2018-16528?format=csv
TAXII collection of exploited CVEs
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Versions per branch

NVD

Amazon amazon web services freertos

Branch	Affected	Fixed in	Source
1.3	≤ 1.3.1	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.08.1read 2026-10-23
NVDCVSS 2.06.8read 2026-10-23
NVDweakness (CWE)CWE-20read 2026-10-23
FIRST EPSSEPSS score3.3 %2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2018-12-06
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2018-16528?

Is CVE-2018-16528 actively exploited?

Active exploitation of CVE-2018-16528 has not been confirmed. Its EPSS score was 3.3% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-16528?

CVE-2018-16528 has a CVSS v3 base score of 8.1 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

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