Security readout for executives and security teams
Plain-English summary
CVE-2021-43927 is an SQL injection issue in Synology DiskStation Manager security management functionality. It affects DSM versions before 7.0.1-42218-2. The rating is moderate because exploitation requires high privileges, but a successful attack could affect confidentiality, integrity, and availability at a limited level.
Executive priority
Treat as a moderate-priority maintenance and access-control issue. Patch affected DSM systems in normal security update cycles, faster where privileged access is broad or remotely exposed.
Technical view
The CVE describes CWE-89 improper SQL command neutralization in Synology DSM Security Management. CVSS v3.1 is 4.7 with network access, low complexity, high privileges required, no user interaction, unchanged scope, and low confidentiality, integrity, and availability impact. The attack vectors are unspecified in the sources.
Likely exposure
Organizations running Synology DSM before 7.0.1-42218-2 are potentially exposed, especially where privileged DSM access is available to many administrators or remotely reachable management paths exist.
Exploitation context
The source bundle does not show CISA KEV listing or public evidence of active exploitation. Because vectors are unspecified and privileges are high, validation should focus on affected versioning and privileged access review.
Researcher notes
Key gaps remain: Synology and CVE text do not specify the injectable parameter, endpoint, or indicators. Avoid exploit validation; use version checks, account review, and vendor advisory tracking.
Mitigation direction
- Upgrade Synology DSM to 7.0.1-42218-2 or later.
- Review Synology advisory Synology_SA_22_01 for vendor guidance.
- Limit DSM privileged access to trusted administrators.
- Audit privileged DSM accounts for unnecessary access.
Validation and detection
- Inventory Synology DSM systems and record running versions.
- Confirm affected systems are not before DSM 7.0.1-42218-2.
- Review who has high-privilege DSM access.
- Check DSM logs for unusual privileged security-management activity.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-89: Database access and collection lookup
Injection into data stores can inform collection, data access, and exfiltration detection reviews. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupDatabase behavior lookup
The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-43927 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 4.7 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L1.23.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.7MediumVector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
Source materials
- CVE List V5 sourceCVE List V5
- https://www.synology.com/security/advisory/Synology_SA_22_01CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.