Security readout for executives and security teams
Plain-English summary
CVE-2025-66955 is a file disclosure flaw in Asseco SEE Live 2.0. An authenticated remote user could make attachment download APIs read host files through a path parameter. The business impact is confidentiality loss, not system takeover, based on the provided CVSS vector.
Executive priority
Treat as a moderate-priority confidentiality issue. Prioritize systems containing regulated, customer, financial, or operational data, especially where many users have authenticated access.
Technical view
The CVE describes Local File Inclusion in Contact Plan, E-Mail, SMS and Fax components. The vulnerable surfaces are downloadAttachment and downloadAttachmentFromPath API calls using a path parameter. CVSS 3.1 is 6.5: network reachable, low complexity, low privileges, no user interaction, high confidentiality impact, no integrity or availability impact.
Likely exposure
Organizations running Asseco SEE Live 2.0 with authenticated user access to the named components or APIs are the known exposure. The CVE record’s structured affected fields list vendor/product/version as n/a, so confirm product ownership and exact deployment details internally.
Exploitation context
No provided source states active exploitation, and the CVE is not marked KEV. A public GitHub reference exists, so security teams should assume technical details may be available publicly, but should not treat exploitation as confirmed from this bundle.
Researcher notes
Evidence is concise and incomplete: structured affected product data is n/a, and no vendor fix is named in the bundle. The strongest claims supported are authenticated network file disclosure through the path parameter in two attachment download API calls.
Mitigation direction
- Check Asseco SEE guidance for patches, configuration changes, or supported workarounds.
- Restrict access to affected APIs to trusted, least-privileged users.
- Review attachment download endpoints for path validation and file access controls.
- Monitor logs for unusual attachment download paths or sensitive file access attempts.
Validation and detection
- Inventory Asseco SEE Live deployments and confirm whether version 2.0 is present.
- Identify use of Contact Plan, E-Mail, SMS, and Fax components.
- Confirm whether downloadAttachment and downloadAttachmentFromPath APIs are exposed to authenticated users.
- Review vendor advisories or support channels for fixed versions or mitigations.
- Check access logs for suspicious use of attachment download parameters.
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-552: 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-2025-66955 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
- 6.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
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:L/UI:N/S:U/C:H/I:N/A:N2.83.6CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
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
- https://github.com/TheWoodenBench/CVE-2025-66955CVE reference, mitre
- https://live.asee.io/CVE reference, mitre
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.
Files or Directories Accessible to External Parties
Files or Directories Accessible to External Parties represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.