Security readout for executives and security teams
Plain-English summary
This flaw is in a Windows backup driver reported with EaseUs Todo Backup 1.2.0.1. A local low-privileged user could read or write raw disk data through the driver, risking data theft, system damage, or privilege escalation. It is serious but requires local access.
Executive priority
Treat as high priority for affected endpoints because compromise could expose or alter disk contents. Urgency depends on whether the driver is deployed; first action is rapid inventory and vendor-guidance review.
Technical view
eudskacs.sys version 20250328 reportedly fails to enforce privileges for IRP_MJ_READ and IRP_MJ_WRITE requests to its device object. The CVSS 3.1 score is 7.8 with local attack vector, low complexity, low privileges, no user interaction, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is likely limited to Windows systems with the affected eudskacs.sys driver version 20250328 from EaseUs Todo Backup 1.2.0.1. The CVE affected-product metadata is incomplete, so inventory confirmation is required.
Exploitation context
The source bundle does not show CISA KEV listing or confirmed active exploitation. The vulnerability requires local low-privileged access, so risk is highest on shared workstations, servers with many local users, and compromised endpoints.
Researcher notes
Evidence supports a local privilege validation flaw in a kernel driver with raw disk read/write impact. Public source data does not provide a vendor patch, full affected-version range, or confirmed exploitation. Avoid assuming broader EaseUS products are affected.
Mitigation direction
- Check vendor guidance for fixed versions or official removal instructions.
- Inventory endpoints for EaseUs Todo Backup 1.2.0.1 and eudskacs.sys version 20250328.
- Remove or disable affected software where business impact allows.
- Restrict local interactive access on systems running the driver.
- Monitor for unusual raw disk access, crashes, or privilege changes.
Validation and detection
- Confirm whether eudskacs.sys version 20250328 is present on endpoints.
- Verify installed EaseUs Todo Backup version against vendor guidance and CVE records.
- Review endpoint telemetry for unexpected access to raw disk devices.
- Prioritize validation on shared systems and high-value administrative workstations.
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-269: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. 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 lookupPrivilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2025-50892 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
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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:L/UI:N/S:U/C:H/I:H/A:H1.85.9CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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
- https://gist.github.com/christopher-ellis-workday/756c998f9f59dd2c437d83e60c7ed220CVE 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.
Improper Privilege Management
Improper Privilege Management represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.