Synology DSM prior 7.1-42661 iSCSI Management missing authentication

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.

A vulnerability was found in Synology DSM. It has been rated as critical. This issue affects some unknown processing of the component iSCSI Management. The manipulation with an unknown input leads to a missing authentication vulnerability. Using CWE to declare the problem leads to CWE-306. The software does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Missing authentication for critical function vulnerability in iSCSI management functionality in Synology DiskStation Manager (DSM) before 7.1-42661 allows remote attackers to read or write arbitrary files via unspecified vectors.

The weakness was presented 10/25/2022 as SA_22_18. It is possible to read the advisory at The identification of this vulnerability is CVE-2022-27623 since 03/21/2022. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 7.1-42661 eliminates this vulnerability.




CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.3

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 9.1
NVD Vector: 🔒

CNA Base Score: 7.4
CNA Vector (Synology Inc.): 🔒



VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍


Class: Missing authentication
CWE: CWE-306 / CWE-287
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒


Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍


Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: DSM 7.1-42661


03/21/2022 CVE reserved
10/25/2022 +217 days Advisory disclosed
10/25/2022 +0 days VulDB entry created
11/23/2022 +29 days VulDB last update



Advisory: SA_22_18
Status: Confirmed

CVE: CVE-2022-27623 (🔒)


Created: 10/25/2022 10:27 PM
Updated: 11/23/2022 11:05 PM
Changes: 10/25/2022 10:27 PM (41), 11/23/2022 11:05 PM (22)
Complete: 🔍


No comments yet. Languages: en.

Please log in to comment.

Want to stay up to date on a daily basis?

Enable the mail alert feature now!