Security readout for executives and security teams
Plain-English summary
CVE-2025-10466 is a medium-severity issue in Synology Safe Access before 1.3.1-0329. An already authenticated administrator could trigger a cross-site scripting flaw that may allow limited access to specific non-sensitive files or limited denial-of-service in SRM. This is not an internet-wide unauthenticated takeover issue based on the provided sources.
Executive priority
Treat this as a controlled, moderate-priority remediation. It is not described as actively exploited or unauthenticated, but it affects administrator-facing security software on network infrastructure. Patch during the next maintenance window and tighten administrative access.
Technical view
The vulnerability is CWE-79 improper input neutralization during web page generation in Synology Safe Access. The CVSS 3.1 score is 5.9 with network attack vector, low complexity, high privileges required, user interaction required, changed scope, and low confidentiality, integrity, and availability impact.
Likely exposure
Exposure is limited to Synology SRM environments running Safe Access versions before 1.3.1-0329, especially where multiple administrators can access the management interface. Organizations without Synology Safe Access or already on 1.3.1-0329 or later are not indicated as affected by the supplied sources.
Exploitation context
The source bundle does not show CISA KEV listing or other evidence of active exploitation. The vulnerability requires authenticated administrator privileges and user interaction, which lowers broad attack likelihood but still matters for shared admin environments or compromised admin accounts.
Researcher notes
Key constraints are PR:H and UI:R, with limited C/I/A impact and changed scope. The provided description names file read/write only for specific non-sensitive information and limited denial-of-service in SRM. Do not assume broader file access, unauthenticated exploitability, or active exploitation from these sources.
Mitigation direction
- Upgrade Synology Safe Access to 1.3.1-0329 or later.
- Review Synology advisory Synology-SA-25:11 for vendor guidance.
- Limit SRM and Safe Access administration to trusted administrators.
- Remove unused administrator accounts and enforce strong account protection.
- Monitor SRM administration activity for unusual file or service-impacting actions.
Validation and detection
- Inventory Synology devices running SRM and Safe Access.
- Confirm Safe Access package version is 1.3.1-0329 or later.
- Identify devices where Safe Access administration is exposed to many admins.
- Review administrator account lists for unnecessary privileges.
- Check whether any affected systems remain pending vendor remediation.
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-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. 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 lookupCVE-2025-10466 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
- 5.9 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/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.
SSVC decision data
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:R/S:C/C:L/I:L/A:L1.73.7synologyVulnerability scoring details
Base CVSS 3.1 score
5.9MediumVector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- Synology-SA-25:11 Safe AccessCVE reference, synology · vendor-advisory
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.