CVE-2018-14439: espritblock eos4j, an unofficial SDK for EOS, through 2018-07-12 mishandles floating-point numbers with more t

Q: How do I fix CVE-2018-14439?

eos4j: upgrade to newer than 2018-07-12. Exact commands for each OS are on this page.

Q: Is CVE-2018-14439 being exploited?

CVE-2018-14439 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2018-14439 affect?

CVE-2018-14439 affects eos4j. Severity is high (CVSS 7.5). espritblock eos4j, an unofficial SDK for EOS, through 2018-07-12 mishandles floating-point numbers with more than four digits after the decimal point, which might allow attackers to trigger currency transfers of unintended amounts.

Q: How urgent is CVE-2018-14439?

Priority 52/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

HIGH 7.5REMOTEUPGRADE

CVE-2018-14439 is a high-severity flaw (CVSS 7.5) affecting eos4j. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

espritblock eos4j, an unofficial SDK for EOS, through 2018-07-12 mishandles floating-point numbers with more than four digits after the decimal point, which might allow attackers to trigger currency transfers of unintended amounts.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.0% (top 36%)
CISA exploited list	No
Weakness	CWE-682
Published	2018-07-20
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: eblock

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2018-07-20 00:29 UTCPublished CVE record published
2026-06-17 01:40 UTCUpdated Record last modified

eblock eos4j UPGRADE

Affected: <= 2018-07-12

Fixed in: newer than 2018-07-12

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy eos4j || rpm -q eos4j || eos4j --version

2. UPGRADE to newer than 2018-07-12 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade eos4j

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade eos4j

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2018-14439?

eos4j: upgrade to newer than 2018-07-12. Exact commands for each OS are on this page.

Is CVE-2018-14439 being exploited?

CVE-2018-14439 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2018-14439 affect?

CVE-2018-14439 affects eos4j. Severity is high (CVSS 7.5). espritblock eos4j, an unofficial SDK for EOS, through 2018-07-12 mishandles floating-point numbers with more than four digits after the decimal point, which might allow attackers to trigger currency transfers of unintended amounts.

How urgent is CVE-2018-14439?

Priority 52/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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