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Signals Exploited in the wild (KEV) 0 Patch available 2 No fix listed 0 Has CVE 2

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Weakness (CWE) CWE-611 Improper Restriction of XML External Entity Reference 1 CWE-91 XML Injection 1

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Vendor: fonttools × Clear all filters

TI-2025-40560 CVE-2025-66034 · GHSA-768j-98cg-p3fv

fontTools is Vulnerable to Arbitrary File Write and XML injection in fontTools.varLib

Priority HIGH 75

fontTools is a library for manipulating fonts, written in Python.

CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.00587 · Published 2025-11-29 · Partial fix · 4.60.2 CWE-91

TI-2023-24160 CVE-2023-45139 · GHSA-6673-4983-2vx5

fonttools XML External Entity Injection (XXE) Vulnerability

Priority HIGH 72

fontTools is a library for manipulating fonts, written in Python.

CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.01228 · Published 2024-01-10 · Fixed in 4.43.0 CWE-611

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