Security readout for executives and security teams
CVE-2025-70101 affects lwext4 1.0.0 when it parses a specially crafted ext4 filesystem image. A malformed image can trigger an out-of-bounds read in extent traversal, potentially crashing the process or exposing memory. Business risk is highest where untrusted disk images are accepted or analyzed. Exposure appears limited to software embedding lwext4 1.0.0 and processing ext4 filesystem images, especially from external users or automated intake. The CVE record does not provide CPEs or a broader affected-product list. Treat as a moderate-priority dependency risk. Prioritize systems that ingest third-party disk images, forensic artifacts, firmware images, or customer-supplied files. Defer emergency response unless active exploitation or broader affected-product evidence appears. Mitigation focus: Check lwext4 vendor guidance for a fixed version or corrective commit.; Restrict processing of untrusted ext4 images until vendor remediation is confirmed.; Run filesystem image parsing in isolated, least-privileged environments..
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
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ATT&CK lookup starting points
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CWE-125: Exact CWE lookup
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Open ATT&CK lookupCVE-2025-70101 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:N/UI:R/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:N/UI:R/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:N/UI:R/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/gkostka/lwext4/issues/91CVE reference, mitre
- https://github.com/sigdevel/pocs/blob/main/res/lwext4/3/sig11_lwext4_ext4_extent_815CVE reference, mitre
- https://infosec.exchange/@sigdevel/116668958927817708CVE 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.
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.