CVE-2018-7259: The FSX / P3Dv4 installer 2.0.1.231 for Flight Sim Labs A320-X sends a user's Google account credentials to ht

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CRITICAL 9.8REMOTEDOWNGRADE

CVE-2018-7259 is a critical-severity flaw (CVSS 9.8) affecting a320-x. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The FSX / P3Dv4 installer 2.0.1.231 for Flight Sim Labs A320-X sends a user's Google account credentials to http://installLog.flightsimlabs.com/LogHandler3.ashx if a pirated serial number has been entered, which allows remote attackers to obtain sensitive information, e.g., by sniffing the network for cleartext HTTP traffic. This behavior was removed in 2.0.1.232.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.0% (top 37%)
CISA exploited list	No
Weakness	CWE-319
Published	2018-02-20
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: flightsimlabs

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

Am I affected?

Timeline

2018-02-20 00:29 UTCPublished CVE record published
2026-06-17 02:02 UTCUpdated Record last modified

flightsimlabs a320-x DOWNGRADE

Affected: 2.0.1.231

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0.1.231

1. Check installed version

apt-cache policy a320-x || rpm -q a320-x || a320-x --version

2. No fixed release: DOWNGRADE to a release before 2.0.1.231 (Debian / Ubuntu)

apt-cache madison a320-x sudo apt install a320-x=<VERSION_BEFORE_2.0.1.231> sudo apt-mark hold a320-x

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

dnf --showduplicates list a320-x sudo dnf downgrade a320-x-<VERSION_BEFORE_2.0.1.231> sudo dnf versionlock add a320-x

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-2018-7259?

a320-x: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2018-7259 being exploited?

CVE-2018-7259 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-2018-7259 affect?

CVE-2018-7259 affects a320-x. Severity is critical (CVSS 9.8). The FSX / P3Dv4 installer 2.0.1.231 for Flight Sim Labs A320-X sends a user's Google account credentials to http://installLog.flightsimlabs.com/LogHandler3.ashx if a pirated serial number has been entered, which allows remote attackers to o

How urgent is CVE-2018-7259?

Priority 55/100. Critical severity; Remotely exploitable, no login, no user action

References

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