webman/imageSelector.cgi in Synology DiskStation Manager (DSM) 4.0 before 4.0-2259, 4.2 before 4.2-3243, and 4.3 before 4.3-3810 Update 1 a…

published 2014-01-09 12y ago modified 2026-06-17 4mo ago also EUVD-2013-6756

cvss: 10.0; version 2.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 84.6%; EPSS 84.6% chance of exploitation in 30 days, percentile 99.7%
public exploits: 2; Metasploit and Exploit-DB

webman/imageSelector.cgi in Synology DiskStation Manager (DSM) 4.0 before 4.0-2259, 4.2 before 4.2-3243, and 4.3 before 4.3-3810 Update 1 allows remote attackers to append data to arbitrary files, and consequently execute arbitrary code, via a pathname in the SLICEUPLOAD X-TMP-FILE HTTP header.

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Timeline

2013-10-31 First public exploit (Metasploit exploit/linux/http/synology_dsm_sliceupload_exec_noauth)
2014-01-09 Published

Exploit prediction

84.57% chance of exploitation in the next 30 days, higher than 99.7% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

Metasploit exploit/linux/http/synology_dsm_sliceupload_exec_noauth Synology DiskStation Manager SLICEUPLOAD Remote Command Execution metasploit exploit, excellent rank, 2013-10-31
EDB-30470 Synology DiskStation Manager - SLICEUPLOAD Remote Command Execution (Metasploit) remote, 2013-12-24

CVSS scores

assigned by	version	score	vector
NVD	2.0	10.0	AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness

CWE-264 Permissions, Privileges, and Access Controls

References

kb.cert.org /vuls/id/615910
third-party-advisory, us-government-resource

Sources

CVE List CVE-2013-6955
NVD CVE-2013-6955

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