AUGUST 4, 2026
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Case File

CVE-2023-45139

HIGH · CVSS 7.5 EPSS 1.24% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2024-01-10 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2023-45139
Severity
HIGH
CVSS
7.5
EPSS
1.24%

Original NVD Description

fontTools is a library for manipulating fonts, written in Python. The subsetting module has a XML External Entity Injection (XXE) vulnerability which allows an attacker to resolve arbitrary entities when a candidate font (OT-SVG fonts), which contains a SVG table, is parsed. This allows attackers to include arbitrary files from the filesystem fontTools is running on or make web requests from the host system. This vulnerability has been patched in version 4.43.0.

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