CVE-2014-8146

Exp

The resolveImplicitLevels function in common/ubidi.c in the Unicode Bidirectional Algorithm implementation in ICU4C in International Components for Unicode (ICU) before 55.1 does not properly track directionally isolated pieces of text, which allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly execute arbitrary code via crafted text.

Published: 2015-05-25 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2014-8146 is rated High Exploit Risk (77.6/100): CVSS High severity, with high exploitation likelihood (EPSS 24.29%, 98th percentile). 3 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

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

Public exploit references (Exploit-DB) for CVE-2014-8146

EDB-ID Source Kind Published Link
43887 exploit_db edb 2015-06-10 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2014-8146

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 25.81% 24.29% -1.52%
2 2026-05-27 26.30% 25.81% -0.49%
3 2026-05-14 — 26.30% —

Full EPSS history (20 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2014-8146

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
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-2014-8146

OS Trackers for CVE-2014-8146

vendor priority summary link
debian not yet assigned CVE-2014-8146 not yet assigned priority: Debian including 1 source packages (icu), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2014-8146
gentoo normal CVE-2014-8146: 1 GLSA(s) (201507-04), 1 atom(s) (dev-libs/icu); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2014-8146
redhat low — https://access.redhat.com/security/cve/CVE-2014-8146
suse high CVE-2014-8146 severity important: SUSE including 1362 source package names (apache-commons-logging-1.1.3-7.1, flute-1.3.0-4.2, …), 2254 product×package rows across 73 product lines (Image SLES12-SP5-Azure-BYOS, Image SLES12-SP5-Azure-Basic-On-Demand, … (73 product lines)): Fixed 2188, Known Not Affected 66. https://www.suse.com/security/cve/CVE-2014-8146/
ubuntu medium CVE-2014-8146 medium priority: Ubuntu including 1 source packages (icu), 5 status rows across 5 suites (precise, trusty, upstream, utopic, vivid): released 4, not-affected 1. https://ubuntu.com/security/CVE-2014-8146

Affected software / configurations for CVE-2014-8146

Vendor Product Version Raw CPE
apple itunes <= 12.1.3 cpe:2.3:a:apple:itunes:*:*:*:*:*:*:*:*
apple iphone_os <= 8.2 cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple mac_os_x <= 10.10.4 cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
apple watchos <= 1.0.1 cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
icu-project international_components_for_unicode < 55.1 cpe:2.3:a:icu-project:international_components_for_unicode:*:*:*:*:*:c\/c\+\+:*:*

References for CVE-2014-8146

URL Tags
http://bugs.icu-project.org/trac/changeset/37162 Issue Tracking Vendor Advisory
http://lists.apple.com/archives/security-announce/2015/Sep/msg00001.html Mailing List
http://lists.apple.com/archives/security-announce/2015/Sep/msg00003.html Mailing List
http://lists.apple.com/archives/security-announce/2015/Sep/msg00005.html Mailing List
http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html Mailing List
http://openwall.com/lists/oss-security/2015/05/05/6 Mailing List
http://seclists.org/fulldisclosure/2015/May/14 Exploit Mailing List Third Party Advisory
http://www.debian.org/security/2015/dsa-3323 Third Party Advisory
http://www.kb.cert.org/vuls/id/602540 Third Party Advisory US Government Resource
http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html Third Party Advisory
http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html Patch
http://www.securityfocus.com/bid/74457 Third Party Advisory VDB Entry
https://raw.githubusercontent.com/pedrib/PoC/master/generic/i-c-u-fail.txt Exploit
https://security.gentoo.org/glsa/201507-04 Third Party Advisory
https://support.apple.com/HT205212 Third Party Advisory
https://support.apple.com/HT205213 Third Party Advisory
https://support.apple.com/HT205221 Third Party Advisory
https://support.apple.com/HT205267 Third Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
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