CVE-2022-43748

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-10-26 · updated 2026-06-17
Weakness: CWE-22

Description

Improper limitation of a pathname to a restricted directory ('Path Traversal') vulnerability in file operation management in Synology Presto File Server before 2.1.2-1601 allows remote attackers to write arbitrary files via unspecified vectors.

Affected products

Synology Presto File Server: before 2.1.2-1601 — fixed in 2.1.2-1601

How to fix

Upgrade to a fixed version: Synology Presto File Server 2.1.2-1601. Check the vendor advisory for mitigations.

References

https://www.synology.com/security/advisory/Synology_SA_22_19
https://www.synology.com/security/advisory/Synology_SA_22_19

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