CVE-2015-2978 — Webservice-DIC yoyaku_v41 allows remote attackers to bypass authentication and complete a conference-room reservation via unspecified vectors, as demonstrated by an "unintentional reservation."

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MEDIUM

Webservice-DIC yoyaku_v41 allows remote attackers to bypass authentication and complete a conference-room reservation via unspecified vectors, as demonstrated by an "unintentional reservation."

Published Jul 29, 2015

5.0

MEDIUM

CVSS 2.0

EPSS 1.28%

Description

Webservice-DIC yoyaku_v41 allows remote attackers to bypass authentication and complete a conference-room reservation via unspecified vectors, as demonstrated by an "unintentional reservation."

Affected products

Remediation

No remediation recorded yet.

Metrics

1.28% 0.01277

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

EPSS probability 0.01277

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	1.28% (0.01277)	68.89th	v5 (v2026.06.15)
Jun 15, 2026	1.28% (0.01277)	66.06th	v5 (v2026.06.15)
Mar 17, 2025	0.65% (0.00647)	69.01th	v4 (v2025.03.14)
Dec 12, 2024	0.14% (0.00143)	51.61th	v3 (v2023.03.01)
Jun 20, 2024	0.14% (0.00143)	50.29th	v3 (v2023.03.01)
Mar 7, 2023	0.14% (0.00143)	48.27th	v3 (v2023.03.01)
Mar 6, 2023	1.05% (0.01055)	52.13th	v2 (v2022.01.01)
Sep 17, 2022	1.05% (0.01055)	50.47th	v2 (v2022.01.01)
Apr 1, 2022	1.05% (0.01055)	48.43th	v2 (v2022.01.01)
Feb 4, 2022	1.05% (0.01055)	27.52th	v2 (v2022.01.01)

Weaknesses (1)

CWE-287

Improper Authentication

References (2)

http://jvn.jp/en/jp/JVN52248864/index.html
third-party-advisoryx_refsource_JVNVendor Advisory
http://jvndb.jvn.jp/jvndb/JVNDB-2015-000108
third-party-advisoryx_refsource_JVNDBVendor Advisory

Link	Providers	Tags
http://jvn.jp/en/jp/JVN52248864/index.html		third-party-advisoryx_refsource_JVNVendor Advisory
http://jvndb.jvn.jp/jvndb/JVNDB-2015-000108		third-party-advisoryx_refsource_JVNDBVendor Advisory

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner jpcert

Published Jul 29, 2015

Updated Aug 6, 2024

Reserved Apr 7, 2015

Link CVE-2015-2978

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2015-2978

Red Hat

Severity n/a

Public date n/a

Links CVE-2015-2978