Directory traversal vulnerability in the SYNO.DNSServer.Zone.MasterZoneConf in Synology DNS Server before 2.2.1-3042 allows remote authenti…

published 2017-08-24 9y ago modified 2026-06-17 4mo ago also EUVD-2017-3660

cvss: 6.5; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 2.0%; EPSS 2.0% chance of exploitation in 30 days, percentile 80%
public exploits: 0; none known

Directory traversal vulnerability in the SYNO.DNSServer.Zone.MasterZoneConf in Synology DNS Server before 2.2.1-3042 allows remote authenticated attackers to write arbitrary files via the domain_name parameter.

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Exploit prediction

1.99% chance of exploitation in the next 30 days, higher than 80% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.0	6.5	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
NVD	2.0	4.0	AV:N/AC:L/Au:S/C:N/I:P/A:N

Affected products

Synology Synology DNS Server

Classification

Weakness

CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

synology.com /en-global/support/security/Synology_SA_17_46_DNS_Server
vendor-advisory

Sources

CVE List CVE-2017-12074
NVD CVE-2017-12074

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