In FlightGear before 2017.2.1, the FGCommand interface allows overwriting any file the…
Priority LOW 36CWE-22Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
In FlightGear before 2017.2.1, the FGCommand interface allows overwriting any file the user has write access to, but not with arbitrary data: only with the contents of a FlightGear flightplan (XML). A resource such as a malicious third-party aircraft could exploit this to damage files belonging to the user. Both this issue and CVE-2016-9956 are directory traversal vulnerabilities in Autopilot/route_mgr.cxx - this one exists because of an incomplete fix for CVE-2016-9956.
Why it matters now
EPSS 0.0142 72nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:flightgear:flightgear:*:*:*:*:*:*:*:* | up to 2017.2 | Vulnerable | FlightGear |
- cpe:2.3:a:flightgear:flightgear:*:*:*:*:*:*:*:* Versions up to 2017.2 Vulnerable ·FlightGear
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-8921
- 2026-10-03 Alias added: GHSA-cm86-qqq5-r5v2
References
More Flightgear vulnerabilities
- TI-2012-01864 Multiple buffer overflows in FlightGear 2.6 and earlier and SimGear 2.6 and earlier allow… CVSS 2.0HIGH 9.3
- TI-2012-01863 Multiple format string vulnerabilities in FlightGear 2.6 and earlier and SimGear 2.6 and… CVSS 2.0HIGH 9.3
- TI-2016-08062 The route manager in FlightGear before 2016.4.4 allows remote attackers to write to… CVSS 3.0HIGH 7.5
- TI-2017-09985 In FlightGear before version 2017.3.1, Main/logger.cxx in the FGLogger subsystem allows… CVSS 3.0HIGH 7.5
Sources
- CVE-2017-8921 · CVE Program
- CVE-2017-8921 · NVD
- FIRST EPSS
- GHSA-cm86-qqq5-r5v2 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences