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CVE-2016-1522

28
FAUCET Score

CVE-2016-1522 describes a heap-based buffer overflow vulnerability in Libgraphite's Code.cpp, affecting Graphite 2 versions up to 1.2.4, specifically as used in Mozilla Firefox before 43.0 and Firefox ESR before 38.6.1. This flaw, rated with a CVSS score of 8.8 (High), allows remote attackers to trigger a denial of service or potentially execute arbitrary code through a crafted Graphite smart font, requiring user interaction. Despite its high severity and potential for significant impact (confidentiality, integrity, availability), there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
22CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:*
23CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:*
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

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
8.31%
Probability of exploitation in next 30 days
EPSS Percentile
94.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0831 is in the 94th percentile among its peer group of 14,825 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 (8)

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 5Fixed in: firefox-0:38.6.1-1.el5_11
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: thunderbird-0:38.6.0-1.el5_11
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: firefox-0:38.6.1-1.el6_7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: thunderbird-0:38.6.0-1.el6_7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: firefox-0:38.6.1-1.el7_2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: thunderbird-0:38.6.0-1.el7_2
View patch
mozillavendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2016-1522Important

graphite2: Null pointer dereference and out-of-bounds access vulnerabilities

Feb 5, 2016

References

blog.talosintel.com / 2016/02/vulnerability-spotlight-libgraphite.html
ExploitThird 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/msg00058.html
rhn.redhat.com / errata/RHSA-2016-0197.html
rhn.redhat.com / errata/RHSA-2016-0258.html
rhn.redhat.com / errata/RHSA-2016-0594.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
oracle.com / technetwork/topics/security/linuxbulletinjan2016-2867209.html
securityfocus.com / bid/82991
ubuntu.com / usn/USN-2902-1