What is CVE-2017-11148?

CVE-2017-11148 is a medium-severity vulnerability in Synology Chat, classified under Server-Side Request Forgery (SSRF). CVSS score: 6.5/10. Published 2017-08-11.

How severe is CVE-2017-11148?

Medium severity. CVSS v3 base score is 6.5 out of 10.

SSRF in Synology Chat

CVE-2017-11148

Server-side request forgery (SSRF) vulnerability in link preview in Synology Chat before 1.1.0-0806 allows remote authenticated users to access intranet resources via unspecified vectors.

Vulnerability class: SSRF (Server-Side Request Forgery)

Published 2017-08-11 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.014 (71.9th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 71.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000

Affected products

Synology Chat
Synology Chat — versions before 1.1.0-0806

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

www.securityfocus.com/bid/100310 (VDB Entry, Third Party Advisory, vdb-entry)
www.synology.com/en-global/support/security/Synology_SA_17_38_Chat (Vendor Advisory)

Frequently asked questions

What is CVE-2017-11148?: CVE-2017-11148 is a medium-severity vulnerability in Synology Chat, classified under Server-Side Request Forgery (SSRF). CVSS score: 6.5/10. Published 2017-08-11.
How severe is CVE-2017-11148?: Medium severity. CVSS v3 base score is 6.5 out of 10.