CVE-2015-6003 — Directory traversal vulnerability in QNAP QTS before 4.1.4 build 0910 and 4.2.x before 4.2.0 RC2 build 0910, when AFP is enabled, allows remote attackers to read or write to arbitrary files by leveraging access to an OS X (1) user or (2) guest account

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HIGH

Directory traversal vulnerability in QNAP QTS before 4.1.4 build 0910 and 4.2.x before 4.2.0 RC2 build 0910, when AFP is enabled, allows remote attackers to read or write to arbitrary files by leveraging access to an OS X (1) user or (2) guest account

Published Oct 16, 2015

9.3

HIGH

CVSS 2.0

EPSS 4.08%

Description

Directory traversal vulnerability in QNAP QTS before 4.1.4 build 0910 and 4.2.x before 4.2.0 RC2 build 0910, when AFP is enabled, allows remote attackers to read or write to arbitrary files by leveraging access to an OS X (1) user or (2) guest account.

Affected products

Remediation

No remediation recorded yet.

Metrics

4.08% 0.04077

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

EPSS probability 0.04077

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 (13 key points)

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

Date	Score	Percentile	Model
Oct 1, 2026	4.08% (0.04077)	90.38th	v5 (v2026.06.15)
Jun 15, 2026	4.08% (0.04077)	89.35th	v5 (v2026.06.15)
Jan 22, 2026	1.58% (0.01584)	81.19th	v4 (v2025.03.14)
Mar 30, 2025	3.35% (0.03353)	86.18th	v4 (v2025.03.14)
Mar 29, 2025	6.35% (0.06354)	84.55th	v4 (v2025.03.14)
Mar 17, 2025	3.35% (0.03353)	86.49th	v4 (v2025.03.14)
Dec 12, 2024	0.66% (0.00656)	80.19th	v3 (v2023.03.01)
Feb 8, 2024	0.66% (0.00656)	78.82th	v3 (v2023.03.01)
Mar 7, 2023	0.66% (0.00656)	76.30th	v3 (v2023.03.01)
Mar 6, 2023	1.14% (0.01136)	59.45th	v2 (v2022.01.01)
Oct 18, 2022	1.14% (0.01136)	58.28th	v2 (v2022.01.01)
Apr 1, 2022	1.14% (0.01136)	56.27th	v2 (v2022.01.01)
Feb 4, 2022	1.14% (0.01136)	34.23th	v2 (v2022.01.01)

Weaknesses (1)

CWE-22

Path Traversal

References (3)

http://www.kb.cert.org/vuls/id/751328
third-party-advisoryx_refsource_CERT-VNThird Party AdvisoryUS Government Resource
http://www.securitytracker.com/id/1033794
vdb-entryx_refsource_SECTRACK
https://www.qnap.com/i/en/support/con_show.php?cid=85
x_refsource_CONFIRMVendor Advisory

Link	Providers	Tags
http://www.kb.cert.org/vuls/id/751328		third-party-advisoryx_refsource_CERT-VNThird Party AdvisoryUS Government Resource
http://www.securitytracker.com/id/1033794		vdb-entryx_refsource_SECTRACK
https://www.qnap.com/i/en/support/con_show.php?cid=85		x_refsource_CONFIRMVendor Advisory

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner certcc

Published Oct 16, 2015

Updated Aug 6, 2024

Reserved Aug 14, 2015

Link CVE-2015-6003

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2015-6003

Red Hat

Severity n/a

Public date n/a

Links CVE-2015-6003