CVE-2016-9956

The route manager in FlightGear before 2016.4.4 allows remote attackers to write to arbitrary...

7.5 HighFix available

The route manager in FlightGear before 2016.4.4 allows remote attackers to write to arbitrary files via a crafted Nasal script.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: High
Availability: None

Exploit likelihood

3.24%Up 1.1 points since Feb 4, 2022

What each source reports

NVD Score used 7.5

The route manager in FlightGear before 2016.4.4 allows remote attackers to write to arbitrary files via a crafted Nasal script.

Record: CVE-2016-9956
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:N/I:P/A:N
Weakness: CWE-284
Updated: 2026-11-02

CVE List No score

The route manager in FlightGear before 2016.4.4 allows remote attackers to write to arbitrary files via a crafted Nasal script.

Record: CVE-2016-9956
Updated: 2026-11-02

EUVDEUVD-2016-10742 No score

The route manager in FlightGear before 2016.4.4 allows remote attackers to write to arbitrary files via a crafted Nasal script.

Record: EUVD-2016-10742
Updated: 2026-11-03

GitHub AdvisoriesGHSA-gx42-hf7v-vhvg 7.5

The route manager in FlightGear before 2016.4.4 allows remote attackers to write to arbitrary...

The route manager in FlightGear before 2016.4.4 allows remote attackers to write to arbitrary files via a crafted Nasal script.

Record: GHSA-gx42-hf7v-vhvg
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness: CWE-284
Updated: 2026-11-02

OSV 7.5

The route manager in FlightGear before 2016.4.4 allows remote attackers to write to arbitrary files via a crafted Nasal script.

Record: CVE-2016-9956
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Updated: 2026-11-02

OSVDEBIAN-CVE-2016-9956 7.5

The route manager in FlightGear before 2016.4.4 allows remote attackers to write to arbitrary files via a crafted Nasal script.

Record: DEBIAN-CVE-2016-9956
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Updated: 2026-11-02

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OSVUBUNTU-CVE-2016-9956 7.5

The route manager in FlightGear before 2016.4.4 allows remote attackers to write to arbitrary files via a crafted Nasal script.

Record: UBUNTU-CVE-2016-9956
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Updated: 2026-11-02

OSVMGASA-2017-0011 No score

Updated flightgear packages fix security vulnerability

A security bug CVE-2016-9956 was found in all FlightGear versions since 2009, that allow an attacker to overwrite any file the flightgear user owns. The Debian adaptation of upstream patch was applied to the Mageia FlightGear package.

Record: MGASA-2017-0011
Updated: 2026-11-02

OSVopenSUSE-SU-2024:10595-1 No score

FlightGear-2020.3.11-1.3 on GA media

These are all security issues fixed in the FlightGear-2020.3.11-1.3 package on the GA media of openSUSE Tumbleweed.

Record: openSUSE-SU-2024:10595-1
Updated: 2026-11-02

OSVUSN-4588-1 No score

flightgear vulnerability

It was discovered that FlightGear could write arbitrary files if received a special nasal script. A remote attacker could exploit this with a crafted file to execute arbitrary code.

Record: USN-4588-1
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`flightgear` Debian:12	before 1:2016.4.3+dfsg-1	1:2016.4.3+dfsg-1
`flightgear` Debian:13	before 1:2016.4.3+dfsg-1	1:2016.4.3+dfsg-1
`flightgear` Debian:8	before 3.0.0-5+deb8u1, plus listed versions 3.0.0-5	3.0.0-5+deb8u1
`flightgear` Mageia:5	before 3.4.0-2.1.mga5	3.4.0-2.1.mga5
`flightgear` Ubuntu:16.04:LTS	before 3.4.0-3ubuntu1.1, plus listed versions 3.4.0-1build13.4.0-23.4.0-33.4.0-3ubuntu1	3.4.0-3ubuntu1.1
`FlightGear` openSUSE:Tumbleweed	before 2020.3.11-1.3	2020.3.11-1.3

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2016-9956 is a high vulnerability (CVSS 7.5) in Flightgear, published December 20, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.24%, the 88th percentile. Fixed in flightgear 1:2016.4.3+dfsg-1.

References

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