File Station CVE-2017-15893

MEDIUM

Path Traversal (CWE-22)

2017-12-08 security@synology.com

Path Traversal Synology File Station

6.5

CVSS 3.0 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-22 OWASP Top 10:2025 A01:2025 - Broken Access Control ASVS 5.0 V5 - File Handling Path canonicalization, traversal prevention MITRE ATT&CK 2 techniques across 2 tactics: Discovery, Collection The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS score of 6.5 (MEDIUM). Attack characteristics: network attack vector, low complexity, low privileges required, no user interaction not required. EPSS exploitation probability: 0.17%.
Exploit ScenarioDerived	A remote attacker could access files and directories outside the intended path by sending crafted requests to the affected application.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

No patch listed yet 0.2% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

AnalysisAI

Directory traversal vulnerability in the SYNO.FileStation.Extract in Synology File Station before 1.1.1-0099 allows remote authenticated users to write arbitrary files via the dest_folder_path. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate and canonicalize file paths. Use chroot or sandboxing. Reject input containing path separators or '../' sequences.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Sign in to check

Technical ContextAI · show details

This vulnerability is classified as Path Traversal (CWE-22), which allows attackers to access files and directories outside the intended path. Directory traversal vulnerability in the SYNO.FileStation.Extract in Synology File Station before 1.1.1-0099 allows remote authenticated users to write arbitrary files via the dest_folder_path parameter. Affected products include: Synology File Station. Version information: before 1.1.1.

Know when File Station gets its next vulnerability

Watch products and get an email when something new is published
Check this CVE against your own stack and servers
Exploit and PoC references, threat intelligence from 22 sources

Continue with Google Continue with GitHub

No credit card · 7-day full trial

Severity by source

NVD PRIMARY 6.5 MEDIUM

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

DescriptionCVE.org

Directory traversal vulnerability in the SYNO.FileStation.Extract in Synology File Station before 1.1.1-0099 allows remote authenticated users to write arbitrary files via the dest_folder_path parameter.

Threat Intelligence Overview

EPSS Score

0.2%

Top 62% exploitable

Data Quality

3 sources

Confidence: Low

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity MEDIUM

CISA KEV No

Public POC No

EPSS 0.2%

Patch available No

Active threat No

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

No

Human Impact· derived

Medium

Priority Score

32

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +32

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Path Traversal HIGH

Path traversal exploits occur when applications use user-controlled input to construct file system paths without proper validation.

Affected Products (CPE)CVE.org

cpe:2.3:a:synology:file_station:*:*:*:*:*:*:*:*

More in File Station

View all

CVE-2025-33031 HIGH This Week

CVE-2025-33031 is an improper certificate validation vulnerability in Synology File Station 5 that allows authenticated

CVE-2025-30279 HIGH This Week

CVE-2025-30279 is an improper certificate validation vulnerability in QNAP File Station 5 that allows authenticated remo

CVE-2025-29885 HIGH This Week

CVE-2025-29885 is an improper certificate validation vulnerability in Synology File Station 5 that allows authenticated

CVE-2025-29884 HIGH This Week

CVE-2025-29884 is an improper certificate validation vulnerability affecting Synology File Station 5 that allows authent

CVE-2025-29883 HIGH This Week

CVE-2025-29883 is an improper certificate validation vulnerability affecting Synology File Station 5 that allows authent

CVE-2025-22486 HIGH This Week

CVE-2025-22486 is an improper certificate validation vulnerability in Synology File Station 5 that allows authenticated

CVE-2025-57707 HIGH This Week

An improper neutralization of directives in statically saved code ('Static Code Injection') vulnerability has been repor

CVE-2025-29872 HIGH This Week

Denial-of-service vulnerability in QNAP File Station 5 that allows an authenticated attacker to exhaust system resources

CVE-2025-29877 HIGH This Week

NULL pointer dereference vulnerability in QNAP File Station 5 that allows authenticated remote attackers to trigger a de

CVE-2025-29876 HIGH This Week

NULL pointer dereference vulnerability in QNAP File Station 5 that allows authenticated remote attackers to trigger a de

CVE-2025-29873 HIGH This Week

NULL pointer dereference vulnerability affecting QNAP File Station 5 that allows authenticated remote attackers to trigg

CVE-2025-22490 HIGH This Week

NULL pointer dereference vulnerability in QNAP File Station 5 that allows authenticated remote attackers to trigger a de

Same weakness CWE-22 – Path Traversal

View all

CVE-2019-3396 CRITICAL POC

CVE-2019-19781 CRITICAL POC

CVE-2020-5902 CRITICAL POC

CVE-2021-21972 CRITICAL POC

CVE-2021-40444 HIGH POC

CVE-2022-41352 CRITICAL POC

CVE-2021-27065 HIGH POC

CVE-2019-11510 CRITICAL POC

Same technique Path Traversal

View all

CVE-2018-20250 HIGH POC

CVE-2022-37042 CRITICAL POC

CVE-2025-64446 CRITICAL POC

References

Advisories & patches

REF https://www.synology.com/en-global/support/security/Synology_SA_17_69_File_Station

Search Externally

Exploit-DB PacketStorm Snyk Rapid7 Nuclei Templates Trickest PoC

Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy