CVE-2015-8947

hb-ot-layout-gpos-table.hh in HarfBuzz before 1.0.5 allows remote attackers to cause a denial of service (buffer over-read) or possibly have unspecified other impact via crafted data, a different vulnerability than CVE-2016-2052.

Published: 2016-07-19 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2015-8947 is rated Moderate Risk (61.2/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.47%). EPSS rose +1.99% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2015-8947

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.48% 2.47% +1.99%
2 2026-01-16 0.36% 0.48% +0.13%
3 2026-01-14 — 0.36% —

Full EPSS history (14 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-8947

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.6 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 4.7 [email protected]
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2015-8947

OS Trackers for CVE-2015-8947

vendor priority summary link
debian not yet assigned CVE-2015-8947 not yet assigned priority: Debian including 1 source packages (harfbuzz), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2015-8947
gentoo normal CVE-2015-8947: 1 GLSA(s) (201701-76), 1 atom(s) (media-libs/harfbuzz); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2015-8947
redhat medium — https://access.redhat.com/security/cve/CVE-2015-8947
suse medium CVE-2015-8947 severity moderate: SUSE including 381 source package names (libixion-0_12-0-0.12.1-12.1, libixion-0_12-0-0.12.1-13.2.1, …), 928 product×package rows across 8 product lines (SUSE Linux Enterprise Desktop 12 SP2, SUSE Linux Enterprise Desktop 12 SP3, … (8 product lines)): Fixed 928. https://www.suse.com/security/cve/CVE-2015-8947/
ubuntu medium CVE-2015-8947 medium priority: Ubuntu including 1 source packages (harfbuzz), 7 status rows across 7 suites (precise, trusty, upstream, wily, xenial, yakkety, zesty): released 3, not-affected 2, DNE 1, ignored 1. https://ubuntu.com/security/CVE-2015-8947

Affected software / configurations for CVE-2015-8947

Vendor Product Version Raw CPE
harfbuzz_project harfbuzz <= 1.0.4 cpe:2.3:a:harfbuzz_project:harfbuzz:*:*:*:*:*:*:*:*

References for CVE-2015-8947

cvelogic Threat Intelligence