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CVE-2014-5323

17
FAUCET Score

CVE-2014-5323 describes a critical vulnerability in the Yuko Yuko Android application (version 1.0.5 and earlier) where it fails to properly validate X.509 certificates from SSL servers. This flaw allows man-in-the-middle (MitM) attackers to spoof legitimate servers, potentially leading to the interception and compromise of sensitive user information. The vulnerability carries a CVSS score of 5.4, indicating a medium severity, with an attack vector requiring adjacent network access and medium attack complexity, but with potential for partial confidentiality, integrity, and availability impact. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.0.5CPE matchmatch criteria
cpe:2.3:a:yukoyuko:_yuko_yuko:1.0.5:*:*:*:*:android:*:*

CVSS Data

CVSS version used by this source: 2.0

5.4MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
ADJACENT_NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
5.5
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.25%
Probability of exploitation in next 30 days
EPSS Percentile
16.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0025 is in the 6th percentile among its peer group of 1,749 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.0 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

Remediation records are not available for this CVE.

References

jvndb.jvn.jp / jvndb/JVNDB-2014-000111
Vendor Advisory
jvn.jp / en/jp/JVN04560253/index.html
play.google.com / store/apps/details