CVE-2018-7295: ffxivlauncher.exe in Square Enix Final Fantasy XIV 4.21 and 4.25 on Windows is affected by Improper Enforcemen

This week

HIGH 8.1REMOTEDOWNGRADE

CVE-2018-7295 is a high-severity flaw (CVSS 8.1) affecting final fantasy xiv. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

ffxivlauncher.exe in Square Enix Final Fantasy XIV 4.21 and 4.25 on Windows is affected by Improper Enforcement of Message Integrity During Transmission in a Communication Channel, allowing a man-in-the-middle attacker to steal user credentials because a session retrieves global.js via http before proceeding to use https. This is fixed in Patch 4.3.

Why this priority

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

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	8.1 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 64%)
CISA exploited list	No
Weakness	CWE-924
Published	2018-05-23
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: square-enix

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

Am I affected?

Timeline

2018-05-23 12:29 UTCPublished CVE record published
2026-06-17 02:02 UTCUpdated Record last modified

square-enix final fantasy xiv DOWNGRADE

Affected: 4.21 · 4.25

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.21

1. Check installed version

apt-cache policy final-fantasy-xiv || rpm -q final-fantasy-xiv || final-fantasy-xiv --version

2. No fixed release: DOWNGRADE to a release before 4.21 (Debian / Ubuntu)

apt-cache madison final-fantasy-xiv sudo apt install final-fantasy-xiv=<VERSION_BEFORE_4.21> sudo apt-mark hold final-fantasy-xiv

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list final-fantasy-xiv sudo dnf downgrade final-fantasy-xiv-<VERSION_BEFORE_4.21> sudo dnf versionlock add final-fantasy-xiv

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2018-7295?

final fantasy xiv: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2018-7295 being exploited?

CVE-2018-7295 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-2018-7295 affect?

CVE-2018-7295 affects final fantasy xiv. Severity is high (CVSS 8.1). ffxivlauncher.exe in Square Enix Final Fantasy XIV 4.21 and 4.25 on Windows is affected by Improper Enforcement of Message Integrity During Transmission in a Communication Channel, allowing a man-in-the-middle attacker to steal user credent

How urgent is CVE-2018-7295?

Priority 47/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

Windows vulnerabilities

References

← Back to latest CVEs