CVE-2015-3774 — The Dictionary app in Apple OS X before 10.10.5 does not use HTTPS, which allows man-in-the-middle attackers to obtain sensitive information by sniffing the network or spoof word definitions by modifying the client-server data stream

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MEDIUM

The Dictionary app in Apple OS X before 10.10.5 does not use HTTPS, which allows man-in-the-middle attackers to obtain sensitive information by sniffing the network or spoof word definitions by modifying the client-server data stream

Published Aug 16, 2015

4.8

MEDIUM

CVSS 2.0

EPSS 0.52%

Description

The Dictionary app in Apple OS X before 10.10.5 does not use HTTPS, which allows man-in-the-middle attackers to obtain sensitive information by sniffing the network or spoof word definitions by modifying the client-server data stream.

Affected products

Remediation

No remediation recorded yet.

Metrics

0.52% 0.00519

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

EPSS probability 0.00519

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% (0.00519)	41.99th	v5 (v2026.06.15)
Jun 15, 2026	0.52% (0.00519)	39.77th	v5 (v2026.06.15)
Mar 17, 2025	0.19% (0.00187)	38.25th	v4 (v2025.03.14)
Dec 12, 2024	0.07% (0.00066)	31.09th	v3 (v2023.03.01)
Jun 11, 2024	0.07% (0.00066)	28.93th	v3 (v2023.03.01)
Mar 7, 2023	0.07% (0.00066)	26.90th	v3 (v2023.03.01)
Mar 6, 2023	1.02% (0.01018)	40.69th	v2 (v2022.01.01)
Sep 10, 2022	1.02% (0.01018)	38.88th	v2 (v2022.01.01)
Apr 1, 2022	1.02% (0.01018)	36.86th	v2 (v2022.01.01)
Feb 4, 2022	1.02% (0.01018)	19.50th	v2 (v2022.01.01)

Weaknesses (1)

CWE-20

Improper Input Validation

References (4)

http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html
vendor-advisoryx_refsource_APPLEVendor Advisory
http://www.securityfocus.com/bid/76340
vdb-entryx_refsource_BID
http://www.securitytracker.com/id/1033276
vdb-entryx_refsource_SECTRACK
https://support.apple.com/kb/HT205031
x_refsource_CONFIRMVendor Advisory

Link	Providers	Tags
http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html		vendor-advisoryx_refsource_APPLEVendor Advisory
http://www.securityfocus.com/bid/76340		vdb-entryx_refsource_BID
http://www.securitytracker.com/id/1033276		vdb-entryx_refsource_SECTRACK
https://support.apple.com/kb/HT205031		x_refsource_CONFIRMVendor Advisory

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner apple

Published Aug 16, 2015

Updated Aug 6, 2024

Reserved May 7, 2015

Link CVE-2015-3774

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2015-3774

Red Hat

Severity n/a

Public date n/a

Links CVE-2015-3774