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CVE-2015-8947

20
FAUCET Score

CVE-2015-8947 is a buffer over-read vulnerability in HarfBuzz versions prior to 1.0.5, specifically within the hb-ot-layout-gpos-table.hh component. This flaw allows remote attackers to trigger a denial of service or potentially other unspecified impacts through specially crafted data. With a CVSS score of 7.6 (High), it can be exploited over the network with low attack complexity, requiring user interaction, and could lead to low confidentiality and integrity impacts but high availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.0.4CPE matchmatch criteria
cpe:2.3:a:harfbuzz_project:harfbuzz:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.6HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
4.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.45%
Probability of exploitation in next 30 days
EPSS Percentile
82.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0245 is in the 82nd percentile among its peer group of 14,824 CVEs.

Social Chatter

No social media mentions found for this CVE.

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 (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6 SupplementaryFixed in: chromium-browser-0:48.0.2564.82-1.el6
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: harfbuzz

Vendor Advisories (1)

redhatCVE-2015-8947Moderate

chromium-browser: Multiple unspecified vulnerabilities in HarfBuzz before 1.0.6

Jan 24, 2016

References

lists.opensuse.org / opensuse-updates/2016-08/msg00070.html
rhn.redhat.com / errata/RHSA-2016-0072.html
github.com / behdad/harfbuzz/commit/f96664974774bfeb237a7274f512f64aaafb201e
github.com / behdad/harfbuzz/issues/139
lists.debian.org / debian-lts-announce/2019/12/msg00022.html
security.gentoo.org / glsa/201701-76
securityfocus.com / bid/92039
ubuntu.com / usn/USN-3067-1