---
id: CVE-2026-79515
title: >-
  An out-of-bounds read in the stbtt_GetGlyphShape component of nothings stb
  commit 31c1ad3 allows attackers to cause a Denial of Service (DoS) via sending
  a crafted TTF file.
summary: >-
  An out-of-bounds read in the stbtt_GetGlyphShape component of nothings stb
  commit 31c1ad3 allows attackers to cause a Denial of Service (DoS) via sending
  a crafted TTF file.
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L'
cwe:
  - CWE-125
published: '2026-09-09'
updated: '2026-09-14'
sourceUpdated: '2026-09-14T15:17:08.203'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-79515'
references:
  - url: 'https://github.com/nothings/stb/issues/1962'
    label: cve@mitre.org
  - url: 'https://github.com/user-attachments/files/31364325/poc_truetype.c'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: 'https://github.com/user-attachments/files/31364326/gen_ttf.py'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-14T14:41:46.402398Z'
epss: 0.00226
epssPercentile: 0.13603
ingestedAt: '2026-09-14T15:23:07.420Z'
---

## Overview

An out-of-bounds read in the stbtt_GetGlyphShape component of nothings stb commit 31c1ad3 allows attackers to cause a Denial of Service (DoS) via sending a crafted TTF file.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.