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Fencer Intel
high 8.1

CVE-2016-1526 json

The TtfUtil:LocaLookup function in TtfUtil.cpp in Libgraphite in Graphite 2 1.2.4, as used in Mozilla Firefox before 43.0 and Firefox ESR 3…

published 2016-02-13 10 y ago modified 2026-06-17 4 mo ago also EUVD-2016-2621

cvss
8.1
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.3%
EPSS 2.3% chance of exploitation in 30 days, percentile 83%
public exploits
0
none known

Summary

The TtfUtil:LocaLookup function in TtfUtil.cpp in Libgraphite in Graphite 2 1.2.4, as used in Mozilla Firefox before 43.0 and Firefox ESR 38.x before 38.6.1, incorrectly validates a size value, which allows remote attackers to obtain sensitive information or cause a denial of service (out-of-bounds read and application crash) via a crafted Graphite smart font.

Patch / fix

  • graphite2 Debian 14, Debian 13, Debian 12 1.3.5-1

debian advisories DEBIAN-CVE-2016-1526

  • graphite2 Ubuntu 14.04 LTS 1.2.4-1ubuntu1.1
  • graphite2 Ubuntu 16.04 LTS 1.3.5-1ubuntu1

ubuntu advisories UBUNTU-CVE-2016-1526

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • graphite2 RHEL 7 1.3.6-1.el7_2
  • firefox RHEL 5 45.1.0-1.el5_11
  • firefox RHEL 6 45.1.0-1.el6_7
  • firefox RHEL 7 45.1.0-1.el7_2

red hat advisories RHSA-2016:0594RHSA-2016:0695

  • graphite2 SLES for SAP 12 SP1, SLES for SAP 12, SLES 12 SP1 +5 more 1.3.1-6.1

suse advisories SUSE-SU-2016:0779-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2016-1526 updated cvss 5.8

graphite2: Out-of-bounds read vulnerability in TfUtil:LocaLookup

  • Red Hat Enterprise Linux (v. 5 server) firefox 45.1.0-1.el5_11 Red Hat Enterprise Linux Client (v. 7) firefox 45.1.0-1.el7_2, graphite2 1.3.6-1.el7_2 Red Hat Enterprise Linux Client Optional (v. 7) firefox 45.1.0-1.el7_2, graphite2 1.3.6-1.el7_2
    fixed: vendor fix RHSA-2016:0695
  • Red Hat Enterprise Linux ComputeNode (v. 7) graphite2 1.3.6-1.el7_2 Red Hat Enterprise Linux ComputeNode Optional (v. 7) graphite2 1.3.6-1.el7_2
    fixed: vendor fix RHSA-2016:0594
  • Red Hat Enterprise Linux Desktop (v. 5 client) firefox 45.1.0-1.el5_11 Red Hat Enterprise Linux Desktop (v. 6) firefox 45.1.0-1.el6_7 Red Hat Enterprise Linux Desktop Optional (v. 6) firefox 45.1.0-1.el6_7 Red Hat Enterprise Linux HPC Node Optional (v. 6) firefox 45.1.0-1.el6_7 Red Hat Enterprise Linux Server (v. 6) firefox 45.1.0-1.el6_7 Red Hat Enterprise Linux Server (v. 7) firefox 45.1.0-1.el7_2, graphite2 1.3.6-1.el7_2
    +6 more products
    Red Hat Enterprise Linux Server Optional (v. 6) firefox 45.1.0-1.el6_7 Red Hat Enterprise Linux Server Optional (v. 7) firefox 45.1.0-1.el7_2, graphite2 1.3.6-1.el7_2 Red Hat Enterprise Linux Workstation (v. 6) firefox 45.1.0-1.el6_7 Red Hat Enterprise Linux Workstation (v. 7) firefox 45.1.0-1.el7_2, graphite2 1.3.6-1.el7_2 Red Hat Enterprise Linux Workstation Optional (v. 6) firefox 45.1.0-1.el6_7 Red Hat Enterprise Linux Workstation Optional (v. 7) firefox 45.1.0-1.el7_2, graphite2 1.3.6-1.el7_2
    fixed: vendor fix RHSA-2016:0695

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.25% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 8.1 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
NVD 2.0 5.8 AV:N/AC:M/Au:N/C:P/I:N/A:P

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.