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TI-2021-13802 Aliases CVE-2021-34808GHSA-x9fw-v6jg-w952

Server-side request forgery in Synology Media Server

Priority LOW 28CWE-918Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-918 and the CVSS impact.

Summary

Server-Side Request Forgery (SSRF) vulnerability in cgi component in Synology Media Server before 1.8.3-2881 allows remote attackers to access intranet resources via unspecified vectors.

Why it matters now

EPSS 0.01016 63rd percentileScored 2026-11-07
Fix Fixed Media Server (Synology): 1.8.3-2881

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
SynologyMedia Serverbefore 1.8.3-28811.8.3-2881Patch availableCNA
  • Media Server VendorSynology Affected before 1.8.3-2881 Fixed in 1.8.3-2881 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:synology:media_server:*:*:*:*:*:*:*:*before 1.8.3-2881VulnerableSynology
  • cpe:2.3:a:synology:media_server:*:*:*:*:*:*:*:* Versions before 1.8.3-2881 Vulnerable ·Synology

Remediation

  • Fix · CNA Media Server (Synology) Fixed in 1.8.3-2881

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-34808
  2. 2026-10-03 Alias added: GHSA-x9fw-v6jg-w952

References

Advisory 1

  • TI-2022-06944 Buffer overflow in Synology Media Server CVSS 3.1CRITICAL 10.0
  • TI-2018-06452 SQL injection in Synology Media Server CVSS 3.0CRITICAL 9.8
  • TI-2021-12731 SQL injection in Synology Media Server CVSS 3.1CRITICAL 9.8
  • TI-2022-10595 Information disclosure in Synology Media Server CVSS 3.1HIGH 7.5
  • TI-2024-04152 Authorization bypass in Synology Media Server CVSS 3.1HIGH 7.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences