CVE-2013-4699 — The Yahoo! Japan Yafuoku! application 4.3.0 and earlier for iOS and Android does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate

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MEDIUM

The Yahoo! Japan Yafuoku! application 4.3.0 and earlier for iOS and Android does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate

Published Aug 21, 2013

5.8

MEDIUM

CVSS 2.0

EPSS 0.52%

Description

The Yahoo! Japan Yafuoku! application 4.3.0 and earlier for iOS and Android does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

Affected products

Remediation

No remediation recorded yet.

Metrics

0.52% 0.00521

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.00521

Score over time

2022–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (10 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	0.52% (0.00521)	42.10th	v5 (v2026.06.15)
Jun 15, 2026	0.52% (0.00521)	39.86th	v5 (v2026.06.15)
Mar 17, 2025	0.13% (0.00134)	30.64th	v4 (v2025.03.14)
Dec 12, 2024	0.06% (0.00061)	27.82th	v3 (v2023.03.01)
Apr 25, 2024	0.06% (0.00064)	26.87th	v3 (v2023.03.01)
Mar 7, 2023	0.06% (0.00061)	23.64th	v3 (v2023.03.01)
Mar 6, 2023	0.89% (0.00885)	27.89th	v2 (v2022.01.01)
Sep 10, 2022	0.89% (0.00885)	26.24th	v2 (v2022.01.01)
Apr 1, 2022	0.89% (0.00885)	24.24th	v2 (v2022.01.01)
Feb 4, 2022	0.89% (0.00885)	10.50th	v2 (v2022.01.01)

Weaknesses (1)

CWE-310

References (2)

http://jvn.jp/en/jp/JVN68156832/index.html
third-party-advisoryx_refsource_JVN
http://jvndb.jvn.jp/jvndb/JVNDB-2013-000078
third-party-advisoryx_refsource_JVNDB

Link	Providers	Tags
http://jvn.jp/en/jp/JVN68156832/index.html		third-party-advisoryx_refsource_JVN
http://jvndb.jvn.jp/jvndb/JVNDB-2013-000078		third-party-advisoryx_refsource_JVNDB

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner jpcert

Published Aug 21, 2013

Updated Sep 16, 2024

Reserved Jun 26, 2013

Link CVE-2013-4699

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2013-4699

Red Hat

Severity n/a

Public date n/a

Links CVE-2013-4699