CVE-2017-7857

FreeType 2 before 2017-03-08 has an out-of-bounds write caused by a heap-based buffer overflow...

9.8 Critical

FreeType 2 before 2017-03-08 has an out-of-bounds write caused by a heap-based buffer overflow related to the TT_Get_MM_Var function in truetype/ttgxvar.c and the sfnt_init_face function in sfnt/sfobjs.c.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

3.63%Up 2.4 points since Apr 14, 2021

What each source reports

NVD Score used 9.8

Record: CVE-2017-7857
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0: 7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness: CWE-787
Updated: 2026-11-02

CVE List No score

Record: CVE-2017-7857
Updated: 2026-11-02

EUVDEUVD-2017-16832 No score

Record: EUVD-2017-16832
Updated: 2026-11-03

GitHub AdvisoriesGHSA-28p8-v452-44mv 9.8

FreeType 2 before 2017-03-08 has an out-of-bounds write caused by a heap-based buffer overflow...

Record: GHSA-28p8-v452-44mv
CVSS 3.0: 9.8 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-787
Updated: 2026-11-02

OSV 9.8

Record: CVE-2017-7857
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-06

Affected products

freetype

History

History
Recorded	Changed	Sources
Nov 4, 2026	facts	OSV
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2017-7857 is a critical vulnerability (CVSS 9.8) in Freetype, published April 14, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.63%, the 89th percentile. No source names a fixed version.