Security readout for executives and security teams
Plain-English summary
CVE-2021-43925 is an SQL injection flaw in Synology DiskStation Manager Log Management before 7.0.1-42218-2. A remote attacker with high privileges could alter database queries, potentially affecting confidentiality, integrity, and availability at a limited level.
Executive priority
Treat this as a moderate-priority remediation item. It is not cited as actively exploited, but affected NAS platforms often hold sensitive operational data and should be updated promptly.
Technical view
The vulnerability is CWE-89 in DSM Log Management. CVSS 3.1 is 4.7 with AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L. The public record says vectors are unspecified, so validation should focus on version exposure and vendor-advisory alignment.
Likely exposure
Exposure is limited to Synology DSM systems running versions before 7.0.1-42218-2. Practical risk is higher where privileged DSM accounts exist broadly or management services are reachable from untrusted networks.
Exploitation context
The source bundle does not show CISA KEV listing or cited active exploitation. The CVSS vector indicates remote network access is possible, but exploitation requires high privileges and no user interaction.
Researcher notes
Public details are sparse: the injection vector is not specified, and no exploit details are provided in the bundle. Avoid assuming affected endpoints beyond DSM Log Management before 7.0.1-42218-2.
Mitigation direction
- Update affected DSM systems to 7.0.1-42218-2 or later per Synology guidance.
- Review Synology advisory Synology_SA_22_01 for model-specific update notes.
- Restrict DSM management access to trusted networks and VPN paths.
- Audit privileged DSM accounts and remove unnecessary administrative access.
Validation and detection
- Inventory Synology DSM versions and identify systems below 7.0.1-42218-2.
- Confirm Log Management is present on affected DSM deployments.
- Check whether DSM management interfaces are reachable from untrusted networks.
- Review DSM logs for unusual Log Management errors or privileged-account 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-2021-43925 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.