CVE-2017-9554

mediumpriority · attend · 58EPSS 0.767 · 100 %ileexploit · functionalEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

4 exploits · functional

Likely / severe?

76.7% (100th) EPSS

CVSS 5 · medium

Is it mine?

2 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-28

An information exposure vulnerability in forget_passwd.cgi in Synology DiskStation Manager (DSM) before 6.1.3-15152 allows remote attackers to enumerate valid usernames via unspecified vectors.

cvss

Technical severity, 0–10. One row per scoring source.

5.3

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.05mediumAV:N/AC:L/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.05.3mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 1.4

v3.05.3mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:Hsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-200USprimary

exploits (4)

Public proof-of-concept and weaponised exploit code.

auxiliary/scanner/http/synology_forget_passwd_user_enumSynology Forget Password User Enumeration Scannerfunctional · metasploit
EDB-43455Synology DiskStation Manager (DSM) < 6.1.3-15152 - 'forget_passwd.cgi' User EnumerationPoC · exploit_db
Ez0-yf/CVE-2017-9554-Exploit-ToolCVE-2017-9554 Exploit ToolPoC · poc_in_github
rfcl/Synology-DiskStation-User-Enumeration-CVE-2017-9554-Tiny script to enumerate users using CVE-2017-9554 (forget_passwd.cgi) PoC · poc_in_github

affected products (2)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
synology diskstation manager≤ 6.1.1-15101-4nvdUScpe:2.3:o:synology:diskstation_manager:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2017-07-24modified 2026-06-17

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+19458 more

references (5)

External citations — patches, advisories, analysis.

scry

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