Security readout for executives and security teams
Plain-English summary
Synology ActiveProtect Agent before 1.1.0-0439 has an origin validation flaw during installation. A local user could cause limited file-writing effects and denial-of-service. This is not described as remotely exploitable in the supplied sources, but it can still disrupt deployment or endpoint protection workflows.
Executive priority
Treat as a moderate operational risk. Prioritize updating systems where ActiveProtect Agent is being deployed or reinstalled, especially on shared or less-controlled endpoints. No active exploitation is cited in the provided sources.
Technical view
CVE-2025-13593 is a CWE-346 origin validation error in Synology ActiveProtect Agent before 1.1.0-0439. The stated impact is arbitrary file write with restricted content and denial-of-service during installation. CVSS 3.1 is 6.1 with local attack vector, low complexity, no privileges, and required user interaction.
Likely exposure
Exposure appears limited to systems installing or running Synology ActiveProtect Agent versions before 1.1.0-0439. The CVSS vector indicates local access and user interaction are required. The supplied affected data is broad, so validate exact installed versions against Synology’s advisory.
Exploitation context
The supplied bundle does not show CISA KEV listing or active exploitation. The attack is characterized as local, low-complexity, and installation-related, with integrity and availability impact but no stated confidentiality impact.
Researcher notes
Evidence is limited to the CVE data and Synology advisory reference. The affected product version scope is stated as before 1.1.0-0439, but the bundle does not provide deeper platform, installer, or configuration details.
Mitigation direction
- Upgrade ActiveProtect Agent to version 1.1.0-0439 or later.
- Follow Synology advisory guidance for affected builds and update channels.
- Restrict local access on systems where the agent is installed.
- Avoid running installer workflows from untrusted local contexts.
- Monitor installation failures and unexpected file changes during deployment.
Validation and detection
- Inventory all systems with Synology ActiveProtect Agent installed.
- Confirm installed versions are 1.1.0-0439 or later.
- Identify recent or pending installation activity on affected hosts.
- Review local user access on systems running affected versions.
- Check Synology’s advisory for any updated scope or remediation notes.
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-346: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. 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-2025-13593 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
- 6.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
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:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H1.84.2synologyVulnerability scoring details
Base CVSS 3.1 score
6.1MediumVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
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-25:15 ActiveProtect AgentCVE 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.
Origin Validation Error
Origin Validation Error represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.