Security readout for executives and security teams
Plain-English summary
This is a Windows NTFS local privilege escalation flaw. An attacker who already has low-level access to a vulnerable Windows system could gain higher privileges. It is not described as remotely exploitable, but it can turn an initial foothold into full system compromise.
Executive priority
Treat this as a high-priority patching item, especially for servers and shared endpoints. It is not evidenced as actively exploited in the provided sources, but successful exploitation could give an attacker full control after initial access.
Technical view
CVE-2026-25175 is a CWE-125 out-of-bounds read in Windows NTFS. Microsoft rates it CVSS 7.8: local attack vector, low complexity, low privileges required, no user interaction, and high confidentiality, integrity, and availability impact. Microsoft lists multiple Windows client and server versions as affected.
Likely exposure
Exposure is likely wherever affected Windows 10, Windows 11, and Windows Server versions remain unpatched. Server Core installations are also listed for several server releases. Systems with local users, shared administrative access, or prior compromise are higher concern.
Exploitation context
The vulnerability requires local authenticated access. The provided sources do not show CISA KEV listing or confirmed active exploitation. Practical risk is post-compromise escalation: malware or an insider with limited rights could attempt to obtain broader control.
Researcher notes
Public source details are limited to Microsoft and CVE metadata. The advisory identifies NTFS, local privilege escalation, CWE-125, and an official remediation state. No exploit details, proof-of-concept status, or exploitation-in-the-wild evidence are present in the supplied sources.
Mitigation direction
- Review Microsoft’s CVE-2026-25175 guidance for the applicable security update.
- Prioritize patching internet-facing, multi-user, and high-value Windows servers.
- Patch endpoints where users can execute untrusted files or scripts.
- Restrict local logon rights and administrative group membership.
- Monitor Microsoft MSRC for revised affected-version or remediation details.
Validation and detection
- Inventory Windows versions against Microsoft’s affected product list.
- Confirm the relevant Microsoft security update is installed.
- Check vulnerability scanner results for CVE-2026-25175 detection.
- Review endpoint telemetry for unusual local privilege escalation behavior.
- Document exceptions for systems that cannot be updated promptly.
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-125: 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 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-2026-25175 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/E:U/RL:O/RC:C
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:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C1.85.9Primary CVE scoreVulnerability 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/E:U/RL:O/RC:C
Source materials
- CVE List V5 sourceCVE List V5
- Windows NTFS Elevation of Privilege VulnerabilityCVE reference · vendor-advisory, patch
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.
Out-of-bounds Read
Out-of-bounds Read represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.