What is CVE-2017-7857?

CVE-2017-7857 is a critical-severity vulnerability in Freetype, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2017-04-14.

How severe is CVE-2017-7857?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Freetype

CVE-2017-7857

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.

Vulnerability class: Buffer Overflow

Published 2017-04-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.036 (89.1th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 89.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.036 · newest: 0.036 · change: 0.000

Affected products

Freetype

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

security.gentoo.org/glsa/201706-14 (vendor-advisory, Third Party Advisory)
git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/ (Patch, Third Party Advisory)
www.securityfocus.com/bid/97680 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
bugs.chromium.org/p/oss-fuzz/issues/detail (VDB Entry, Third Party Advisory, Issue Tracking)
www.oracle.com/security-alerts/cpuapr2020.html (Third Party Advisory)

Frequently asked questions

What is CVE-2017-7857?: CVE-2017-7857 is a critical-severity vulnerability in Freetype, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2017-04-14.
How severe is CVE-2017-7857?: Critical severity. CVSS v3 base score is 9.8 out of 10.