CVE-2017-16775 — Improper restriction of rendered UI layers or frames vulnerability in SSOOauth.cgi in Synology SSO Server before 2.1.3-0129 allows remote attackers to conduct clickjacking attacks via unspecified vectors

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HIGH

Improper restriction of rendered UI layers or frames vulnerability in SSOOauth.cgi in Synology SSO Server before 2.1.3-0129 allows remote attackers to conduct clickjacking attacks via unspecified vectors

Published Apr 1, 2019

7.1

HIGH

CVSS 3.0

EPSS 1.07%

Description

Improper restriction of rendered UI layers or frames vulnerability in SSOOauth.cgi in Synology SSO Server before 2.1.3-0129 allows remote attackers to conduct clickjacking attacks via unspecified vectors.

Affected products

Vendor Synology Product SSO Server Default
n/a
- Version
  unspecified
  Status
  affected
  Constraints
  <2.1.3-0129

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Synology

SSO Server

n/a

Version	Status	Constraints
unspecified	affected	<2.1.3-0129

Remediation

No remediation recorded yet.

Metrics

1.07% 0.01075

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.01075

Score over time

2021–2026

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Percentile over time

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Table of values (9 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	1.07% (0.01075)	63.73th	v5 (v2026.06.15)
Sep 20, 2026	1.07% (0.01075)	63.50th	v5 (v2026.06.15)
Jul 20, 2024	0.13% (0.00125)	47.50th	v3 (v2023.03.01)
Jun 15, 2024	0.13% (0.00125)	47.20th	v3 (v2023.03.01)
Mar 7, 2023	0.13% (0.00125)	45.20th	v3 (v2023.03.01)
Mar 6, 2023	1.05% (0.01055)	52.13th	v2 (v2022.01.01)
Feb 4, 2022	1.05% (0.01055)	27.52th	v2 (v2022.01.01)
Feb 3, 2022	0.52% (0.00523)	12.55th	v5 (v2026.06.15)
Apr 14, 2021	0.52% (0.00523)	0.00th	v1