Security readout for executives and security teams
Plain-English summary
A flaw in a Windows logging driver can let an already authorized local user gain higher privileges. This can turn an initial, limited compromise into broad control over an affected workstation or server. CISA lists the vulnerability as known exploited, increasing remediation urgency.
Executive priority
Treat as an urgent patching priority because exploitation is documented and successful abuse could amplify an existing foothold. Focus first on high-value systems and legacy servers, while recognizing that an attacker must already possess authorized local access.
Technical view
CVE-2025-29824 is a CWE-416 use-after-free in the Windows Common Log File System driver. Exploitation is local, low complexity, requires low privileges, and needs no user interaction. The CVSS 3.1 score is 7.8, with potentially high confidentiality, integrity, and availability impact.
Likely exposure
Exposure includes the listed Windows 10 and Windows 11 releases and Windows Server versions from 2008 through 2019, including specified Server Core installations. Determine applicability by matching deployed versions and builds against Microsoft's advisory; the supplied evidence does not establish that every Windows release is affected.
Exploitation context
CISA's Known Exploited Vulnerabilities listing supports active exploitation. Because exploitation requires authorized local access, this is primarily a post-compromise privilege-escalation risk rather than an unauthenticated remote entry point. The supplied sources do not establish campaign scope, attacker attribution, or public exploit availability.
Researcher notes
The vector is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. The source bundle identifies a CLFS driver use-after-free but provides no root-cause depth, indicators of compromise, campaign telemetry, or precise update identifiers. Consult the MSRC record for platform-specific remediation details.
Mitigation direction
- Apply Microsoft's security update for each affected Windows version according to the MSRC advisory.
- Prioritize exposed, shared, administrative, and high-value Windows systems.
- Restrict unnecessary local accounts and privileges while updates are pending.
- Use vendor guidance for unsupported or legacy Windows Server installations.
Validation and detection
- Inventory Windows editions, versions, builds, and Server Core installations.
- Compare inventory results with the affected products in Microsoft's advisory.
- Confirm the applicable Microsoft security update is installed successfully.
- Re-scan remediated systems and investigate update failures or excluded assets.
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-416: 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-2025-29824 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
- Yes
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/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.
CISA KEV status
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:H/E:F/RL:O/RC:C1.85.9microsoftVulnerability 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:F/RL:O/RC:C
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.
- Added to KEVCISA-ADP
CISA Known Exploited Vulnerabilities metadata lists this CVE as known exploited.
- ADP timelineCISA-ADP
CVE-2025-29824 added to CISA KEV
- 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
- 2025-04-08T00:00:00.000Z: CVE-2025-29824 added to CISA KEV
Source materials
- CVE List V5 sourceCVE List V5
- Windows Common Log File System Driver Elevation of Privilege VulnerabilityCVE reference, microsoft · vendor-advisory, patch
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-29824CVE reference, CISA-ADP · government-resource
- https://www.vicarius.io/vsociety/posts/cve-2025-29824-windows-common-log-file-system-driver-elevation-of-privilege-vulnerability-mitigation-scriptCVE reference, CVE
- https://www.vicarius.io/vsociety/posts/cve-2025-29824-windows-common-log-file-system-driver-elevation-of-privilege-vulnerability-detection-scriptCVE reference, CVE
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.
Use After Free
Use After Free represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.