What is CVE-2016-2797?

CVE-2016-2797 is a high-severity vulnerability in Mozilla Firefox, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2016-03-13.

How severe is CVE-2016-2797?

High severity. CVSS v3 base score is 8.8 out of 10.

Buffer overflow in Mozilla Firefox

CVE-2016-2797

The graphite2::TtfUtil::CmapSubtable12Lookup function in Graphite 2 before 1.3.6, as used in Mozilla Firefox before 45.0 and Firefox ESR 38.x before 38.7, allows remote attackers to cause a denial of service (buffer over-read) or possibly have unspecified other impact via a crafted Graphite smart font, a different vulnerability than CVE-2016-2801.

Vulnerability class: Buffer Overflow

Published 2016-03-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.027 (85.4th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 85.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.027 · newest: 0.027 · change: 0.000

Affected products

Mozilla Firefox — versions 38.0, 38.0.1, 38.0.5
Oracle Linux — versions 5.0, 6, 7
Sil Graphite2
openSUSE Leap — versions 42.1
openSUSE — versions 13.1, 13.2
SUSE Linux Enterprise — versions 12.0

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

References

lists.opensuse.org/opensuse-security-announce/2016-03/msg00091.html (vendor-advisory)
www.securityfocus.com/bid/84222 (VDB Entry, Third Party Advisory, vdb-entry)
lists.opensuse.org/opensuse-security-announce/2016-03/msg00068.html (vendor-advisory)
lists.opensuse.org/opensuse-security-announce/2016-07/msg00006.html (vendor-advisory, Third Party Advisory)
www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html (Third Party Advisory)
lists.opensuse.org/opensuse-security-announce/2016-03/msg00029.html (vendor-advisory)
lists.opensuse.org/opensuse-security-announce/2016-03/msg00027.html (vendor-advisory)
lists.opensuse.org/opensuse-security-announce/2016-07/msg00008.html (vendor-advisory, Third Party Advisory)
lists.opensuse.org/opensuse-security-announce/2016-03/msg00089.html (vendor-advisory)
www.ubuntu.com/usn/USN-2917-1 (vendor-advisory)

Frequently asked questions

What is CVE-2016-2797?: CVE-2016-2797 is a high-severity vulnerability in Mozilla Firefox, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2016-03-13.
How severe is CVE-2016-2797?: High severity. CVSS v3 base score is 8.8 out of 10.