CVE-2025-0781
Incorrect Authorization in SimGear
An attacker can bypass the sandboxing of Nasal scripts and arbitrarily write to any file path that the user has permission to modify at the operating-system level.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Incorrect Authorization in SimGear
An attacker can bypass the sandboxing of Nasal scripts and arbitrarily write to any file path that the user has permission to modify at the operating-system level.
- Record
CVE-2025-0781- CVSS 3.1
- 8.6 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H - Weakness
- CWE-863
- Updated
- 2026-11-02
EUVDEUVD-2025-1857
An attacker can bypass the sandboxing of Nasal scripts and arbitrarily write to any file path that the user has permission to modify at the operating-system level.
- Record
EUVD-2025-1857- CVSS 3.1
- 8.6 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-555q-7wq3-w6ch
An attacker can bypass the sandboxing of Nasal scripts and arbitrarily write to any file path...
An attacker can bypass the sandboxing of Nasal scripts and arbitrarily write to any file path that the user has permission to modify at the operating-system level.
- Record
GHSA-555q-7wq3-w6ch- CVSS 3.1
- 8.6 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H - Weakness
- CWE-863
- Updated
- 2026-11-02
NVD
An attacker can bypass the sandboxing of Nasal scripts and arbitrarily write to any file path that the user has permission to modify at the operating-system level.
- Record
CVE-2025-0781- CVSS 3.1
- 8.6 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H - CVSS 3.1
- 9.9 Critical
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-863
- Updated
- 2026-11-02
OSV
Incorrect Authorization in SimGear
An attacker can bypass the sandboxing of Nasal scripts and arbitrarily write to any file path that the user has permission to modify at the operating-system level.
- Record
CVE-2025-0781- CVSS 3.1
- 8.6 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H - Weakness
- CWE-863
- Updated
- 2026-11-02
OSVDEBIAN-CVE-2025-0781
An attacker can bypass the sandboxing of Nasal scripts and arbitrarily write to any file path that the user has permission to modify at the operating-system level.
- Record
DEBIAN-CVE-2025-0781- CVSS 3.1
- 9.9 Critical
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2025-0781
An attacker can bypass the sandboxing of Nasal scripts and arbitrarily write to any file path that the user has permission to modify at the operating-system level.
- Record
UBUNTU-CVE-2025-0781- CVSS 3.1
- 8.6 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H - CVSS 3.1
- 9.9 Critical
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - Updated
- 2026-11-06
OSVUSN-7965-1 No score
simgear vulnerability
It was discovered that SimGear could be made to bypass the sandboxing of Nasal scripts. An attacker could possibly use this issue to execute arbitrary code.
- Record
USN-7965-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
flightgearDebian:12 |
before 1:2020.3.16+dfsg-1+deb12u1, plus listed versions 1:2020.3.16+dfsg-1 |
1:2020.3.16+dfsg-1+deb12u1 |
flightgearDebian:13 |
before 1:2020.3.19+dfsg-1 | 1:2020.3.19+dfsg-1 |
simgearDebian:12 |
before 1:2020.3.16+dfsg-1+deb12u1, plus listed versions 1:2020.3.16+dfsg-1 |
1:2020.3.16+dfsg-1+deb12u1 |
simgearDebian:13 |
before 1:2020.3.19+dfsg-1 | 1:2020.3.19+dfsg-1 |
simgearDebian:14 |
before 1:2020.3.19+dfsg-1 | 1:2020.3.19+dfsg-1 |
simgearDebian:11 |
before 1:2020.3.6+dfsg-1+deb11u1, plus listed versions 1:2020.3.6+dfsg-1 |
1:2020.3.6+dfsg-1+deb11u1 |
flightgearDebian:11 |
before 1:2020.3.6+dfsg-1+deb11u1, plus listed versions 1:2020.3.6+dfsg-1 |
1:2020.3.6+dfsg-1+deb11u1 |
simgearUbuntu:Pro:16.04:LTS |
before 3.4.0-3ubuntu0.1~esm1, plus listed versions 3.4.0-2build13.4.0-3 |
3.4.0-3ubuntu0.1~esm1 |
flightgearUbuntu:16.04:LTS |
All versions, plus listed versions 3.4.0-1build13.4.0-23.4.0-33.4.0-3ubuntu13.4.0-3ubuntu1.1 |
None known |
simgearUbuntu:Pro:18.04:LTS |
before 1:2018.1.1+dfsg-1ubuntu0.1~esm1, plus listed versions 1:2017.2.1+dfsg-21:2017.3.1+dfsg-21:2017.3.1+dfsg-31:2018.1.1+dfsg-1 |
1:2018.1.1+dfsg-1ubuntu0.1~esm1 |
Show 4 moreShow less
| Package | Affected | Fixed |
|---|---|---|
simgearUbuntu:Pro:20.04:LTS |
before 1:2019.1.1+dfsg-3ubuntu0.1~esm1, plus listed versions 1:2019.1.1+dfsg-21:2019.1.1+dfsg-2build11:2019.1.1+dfsg-3~build11:2019.1.1+dfsg-3 |
1:2019.1.1+dfsg-3ubuntu0.1~esm1 |
simgearUbuntu:Pro:22.04:LTS |
before 1:2020.3.6+dfsg-1ubuntu0.1~esm2, plus listed versions 1:2020.3.6+dfsg-1 |
1:2020.3.6+dfsg-1ubuntu0.1~esm2 |
flightgearUbuntu:24.04:LTS |
All versions, plus listed versions 1:2020.3.18+dfsg-11:2020.3.18+dfsg-1build11:2020.3.18+dfsg-1build31:2020.3.18+dfsg-1.1 |
None known |
simgearUbuntu:Pro:24.04:LTS |
before 1:2020.3.18+dfsg-2.1ubuntu0.1~esm1, plus listed versions 1:2020.3.18+dfsg-21:2020.3.18+dfsg-2.1 |
1:2020.3.18+dfsg-2.1ubuntu0.1~esm1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | OSV | |
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-0781 is a high vulnerability (CVSS 8.6) in Flightgear Simgear, published January 28, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.36%, the 29th percentile. Fixed in flightgear 1:2020.3.16+dfsg-1+deb12u1.
References
gitlab.com/flightgear/simgear/-/commit/5bb023647114267141a7610e8f1ca7d6f4f5a5a8
lists.debian.org/debian-lts-announce/2025/01/msg00028.html
nvd.nist.gov/vuln/detail/CVE-2025-0781