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CVE-2014-8147

42
FAUCET Score

CVE-2014-8147 is a denial-of-service vulnerability in the Unicode Bidirectional Algorithm implementation of ICU4C in International Components for Unicode (ICU) before version 55.1. It arises from an integer data type inconsistency, allowing remote attackers to trigger an incorrect malloc followed by an invalid free, potentially leading to arbitrary code execution. With a CVSS score of 7.5 (High), this vulnerability is remotely exploitable with low attack complexity, impacting confidentiality, integrity, and availability. While there is no evidence of active exploitation or Metasploit modules, an ExploitDB entry (EDB-43887) suggests exploit code exists for similar ICU library vulnerabilities. Community discussion and media coverage for this specific CVE are minimal.

Impacted Technologies

VendorProductVersion(s)CPE
<= 10.10.4CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
<= 1.0.1CPE matchmatch criteria
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
< 55.1CPE matchmatch criteria
cpe:2.3:a:icu-project:international_components_for_unicode:*:*:*:*:*:c\/c\+\+:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
23.35%
Probability of exploitation in next 30 days
EPSS Percentile
97.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
ExploitDB: EDB-43887 · Jun 10, 2015
This CVE's current EPSS score of 0.2335 is in the 96th percentile among its peer group of 51,466 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (6)

oraclepatch availablevia nvd_reference
View patch
redhatend of lifevia redhat_api
Product: Red Hat Directory Server 8Fixed in: icu
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: icu
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: icu
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: icu
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Enterprise 2Fixed in: icu

Vendor Advisories (1)

redhatCVE-2014-8147Low

icu: integer truncation in the resolveImplicitLevels function

May 5, 2015

References

bugs.icu-project.org / trac/changeset/37080
Issue TrackingVendor Advisory
lists.apple.com / archives/security-announce/2015/Sep/msg00005.html
Mailing List
lists.apple.com / archives/security-announce/2015/Sep/msg00008.html
Mailing List
openwall.com / lists/oss-security/2015/05/05/6
Mailing List
seclists.org / fulldisclosure/2015/May/14
ExploitMailing ListThird Party Advisory
lists.apache.org / thread.html/9317fd092b257a0815434b116a8af8daea6e920b6673f4fd5583d5fe%40%3Ccommits.druid.apache.org%3E
raw.githubusercontent.com / pedrib/PoC/master/generic/i-c-u-fail.txt
Exploit
security.gentoo.org / glsa/201507-04
Third Party Advisory
support.apple.com / HT205213
Third Party Advisory
support.apple.com / HT205267
Third Party Advisory
oracle.com / technetwork/security-advisory/cpuapr2019-5072813.html
debian.org / security/2015/dsa-3323
Third Party Advisory
kb.cert.org / vuls/id/602540
Third Party AdvisoryUS Government Resource
oracle.com / technetwork/topics/security/bulletinoct2015-2511968.html
Third Party Advisory
oracle.com / technetwork/topics/security/cpuoct2015-2367953.html
Patch
securityfocus.com / bid/74457
Third Party AdvisoryVDB Entry