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CVE-2016-1526

26
FAUCET Score

CVE-2016-1526 describes an out-of-bounds read vulnerability in the TtfUtil:LocaLookup function of Libgraphite in Graphite 2, affecting Mozilla Firefox and Firefox ESR. This flaw allows remote attackers to trigger a denial of service or information disclosure through a specially crafted Graphite smart font. With a CVSS score of 8.1 (High), it can be exploited over the network with low complexity, requiring user interaction, and potentially leading to high confidentiality impact and high availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage for this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
7.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
38.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:38.0:*:*:*:*:*:*:*
38.0.1CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:38.0.1:*:*:*:*:*:*:*
38.0.5CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:38.0.5:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.1HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.2
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.25%
Probability of exploitation in next 30 days
EPSS Percentile
81.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0225 is in the 80th percentile among its peer group of 14,875 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: firefox-0:45.1.0-1.el5_11
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: firefox-0:45.1.0-1.el6_7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: graphite2-0:1.3.6-1.el7_2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: firefox-0:45.1.0-1.el7_2
View patch
mozillavendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2016-1526Important

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

Feb 5, 2016

References

blog.talosintel.com / 2016/02/vulnerability-spotlight-libgraphite.html
Third Party Advisory
lists.fedoraproject.org / pipermail/package-announce/2016-February/177520.html
Third Party Advisory
lists.fedoraproject.org / pipermail/package-announce/2016-May/184623.html
Third Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-03/msg00052.html
lists.opensuse.org / opensuse-security-announce/2016-03/msg00058.html
lists.opensuse.org / opensuse-security-announce/2016-03/msg00088.html
rhn.redhat.com / errata/RHSA-2016-0594.html
rhn.redhat.com / errata/RHSA-2016-0695.html
security.gentoo.org / glsa/201701-35
security.gentoo.org / glsa/201701-63
debian.org / security/2016/dsa-3479
Third Party Advisory
mozilla.org / security/announce/2016/mfsa2016-14.html
Vendor Advisory
oracle.com / technetwork/topics/security/linuxbulletinapr2016-2952096.html
securityfocus.com / bid/82991
ubuntu.com / usn/USN-2902-1