7.4

CVE-2018-16523: amazon amazon_web_services_freertos Divide By Zero

CVSS: 7.4v3.0HighModified
Published 06-12-2018Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-16523 is a high (CVSS 7.4) Divide By Zero vulnerability in amazon amazon_web_services_freertos. EPSS estimates a 2.05% chance of exploitation in the next 30 days, higher than 80.8% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
40/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.4/10
010
High · v3.0 (NVD)
EPSS score
2.05%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 06-12-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

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 division by zero in prvCheckOptions.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

2.05%

Chance of exploitation in the next 30 days

Percentile

81%

Versus all other CVEs

30-day change

0.00 pp

From 2.05% on 18-09-2026

18-09-202618-10-2026
EPSS score
2.05%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (blog.zimperium.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Amazon2 products

1 vendor · 2 products

References

3 links