CVE-2025-66034
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2025-66034
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-66034.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2025-66034
- Aliases
- Downstream
- Published
- 2025-11-29T01:07:12.193Z
- Modified
- 2025-12-01T20:27:55.939504Z
- Severity
-
- 6.3 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:N/I:H/A:L CVSS Calculator
- Summary
- fontTools is Vulnerable to Arbitrary File Write and XML injection in fontTools.varLib
- Details
-
fontTools is a library for manipulating fonts, written in Python. In versions from 4.33.0 to before 4.60.2, the fonttools varLib (or python3 -m fontTools.varLib) script has an arbitrary file write vulnerability that leads to remote code execution when a malicious .designspace file is processed. The vulnerability affects the main() code path of fontTools.varLib, used by the fonttools varLib CLI and any code that invokes fontTools.varLib.main(). This issue has been patched in version 4.60.2.
- Database specific
{ "cwe_ids": [ "CWE-91" ] }- References
Affected packages
Git / github.com/fonttools/fonttools
Affected ranges
- Type
- GIT
- Repo
- https://github.com/fonttools/fonttools
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
Affected versions
2.*
2.5
2.5-dama10
2.5-dama11
2.5-dama4
2.5-dama5
2.5-dama6
2.5-dama7
2.5-dama8
3.*
3.0
3.0-dama1
3.1.0
3.1.1
3.1.2
3.10.0
3.11.0
3.12.0
3.12.1
3.13.0
3.13.1
3.14.0
3.15.0
3.15.1
3.16.0
3.17.0
3.18.0
3.19.0
3.2.0
3.2.1
3.2.2
3.2.3
3.20.0
3.20.1
3.21.0
3.21.1
3.21.2
3.22.0
3.23.0
3.24.0
3.24.1
3.24.2
3.25.0
3.26.0
3.27.0
3.27.1
3.28.0
3.29.0
3.29.1
3.3.0
3.3.1
3.30.0
3.31.0
3.32.0
3.33.0
3.34.0
3.34.1
3.34.2
3.35.0
3.35.1
3.35.2
3.36.0
3.37.0
3.37.1
3.37.2
3.37.3
3.38.0
3.39.0
3.4.0
3.40.0
3.41.0
3.41.1
3.41.2
3.42.0
3.43.0
3.43.1
3.43.2
3.44.0
3.5.0
3.6.0
3.6.1
3.6.2
3.6.3
3.7.0
3.7.1
3.7.2
3.8.0
3.9.0
3.9.1
3.9.2
4.*
4.0.0
4.0.1
4.0.2
4.1.0
4.10.0
4.10.1
4.10.2
4.11.0
4.12.0
4.12.1
4.13.0
4.14.0
4.15.0
4.16.0
4.16.1
4.17.0
4.17.1
4.18.0
4.18.1
4.18.2
4.19.0
4.19.1
4.2.0
4.2.1
4.2.2
4.2.3
4.2.4
4.2.5
4.20.0
4.21.0
4.21.1
4.22.0
4.22.1
4.23.0
4.23.1
4.24.0
4.24.1
4.24.2
4.24.3
4.24.4
4.25.0
4.25.1
4.25.2
4.26.0
4.26.1
4.26.2
4.27.0
4.27.1
4.28.0
4.28.1
4.28.2
4.28.3
4.28.4
4.28.5
4.29.0
4.29.1
4.3.0
4.30.0
4.31.0
4.31.1
4.31.2
4.32.0
4.33.0
4.33.1
4.33.3
4.34.0
4.34.1
4.34.2
4.34.3
4.34.4
4.35.0
4.36.0
4.37.0
4.37.1
4.37.2
4.37.3
4.37.4
4.38.0
4.39.0
4.39.1
4.39.2
4.39.3
4.39.4
4.4.0
4.4.1
4.4.2
4.4.3
4.40.0
4.41.0
4.41.1
4.42.0
4.42.1
4.43.0
4.43.1
4.44.0
4.44.1
4.44.2
4.44.3
4.45.0
4.45.1
4.46.0
4.47.0
4.47.1
4.47.2
4.48.0
4.48.1
4.49.0
4.5.0
4.50.0
4.51.0
4.52.0
4.52.1
4.52.2
4.52.3
4.52.4
4.53.0
4.53.1
4.54.0
4.54.1
4.55.0
4.55.2
4.55.3
4.55.4
4.55.5
4.55.6
4.55.7
4.55.8
4.56.0
4.57.0
4.58.0
4.58.1
4.58.2
4.58.3
4.58.4
4.58.5
4.59.0
4.59.1
4.59.2
4.6.0
4.60.0
4.60.1
4.7.0
4.8.0
4.8.1
4.9.0
FontTools-1.*
FontTools-1.0a6
FontTools-1.0b1
FontTools-2.*
FontTools-2.0b1
FontTools-2.1
FontTools-2.2
FontTools-2.3
FontTools-2.4
RoboFog-1.*
RoboFog-1.6.2
RoboFog-1.6.3