Security readout for executives and security teams
Plain-English summary
This flaw is an out-of-bounds read in the Linux kernel NTFS filesystem code. A local, low-privileged attacker could potentially read sensitive memory or disrupt the system. It is not listed as CISA KEV in the provided bundle, so active exploitation is not established here.
Executive priority
Treat this as a high-priority kernel maintenance issue for Linux systems with local-user or workload exposure. It is below emergency priority absent active exploitation evidence, but kernel memory disclosure and availability impact justify timely patching through standard vendor channels.
Technical view
CVE-2023-26607 affects Linux kernel 6.0.8 in ntfs_attr_find within fs/ntfs/attrib.c. The issue is CWE-125 out-of-bounds read with CVSS 3.1 score 7.1, local attack vector, low complexity, low privileges, no user interaction, high confidentiality impact, and high availability impact.
Likely exposure
Exposure is most likely on systems running Linux kernel 6.0.8 or vendor kernels carrying the vulnerable NTFS code. Risk depends on whether the vulnerable NTFS filesystem path is present, enabled, and reachable by local users or workloads.
Exploitation context
The bundle does not show KEV listing or cited evidence of exploitation in the wild. The CVSS vector indicates local exploitation requiring low privileges, with potential information disclosure and availability impact. Public references include an upstream Linux kernel commit and vendor advisories, but details are incomplete in the provided bundle.
Researcher notes
The source bundle names Linux kernel 6.0.8 and ntfs_attr_find but does not provide a complete affected-version matrix. Avoid assuming all distributions are affected equally; validate vendor backports and configuration. The referenced kernel commit is relevant evidence, but package remediation should follow distribution guidance.
Mitigation direction
- Check kernel vendor advisories for affected and fixed package versions.
- Prioritize applying vendor kernel updates that include the referenced upstream fix.
- Limit local access to systems until patched where multi-user exposure exists.
- Reduce exposure to untrusted NTFS media or filesystem inputs where operationally feasible.
- Track NetApp and SUSE guidance if those environments are in scope.
Validation and detection
- Inventory Linux hosts and identify kernel versions, especially 6.0.8-derived builds.
- Confirm whether the kernel NTFS driver is present, enabled, or loaded.
- Check vendor security notices for package-level affected status and fixed builds.
- Verify installed kernel packages include the referenced upstream correction or vendor backport.
- Review local-user exposure on shared systems, build hosts, and container hosts.
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 lookupCVE-2023-26607 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
- 7.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/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.
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:N/A:H1.85.2Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.1HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://lkml.org/lkml/2023/2/21/1353CVE reference
- https://security.netapp.com/advisory/ntap-20230316-0010/CVE reference
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=36a4d82dddbbd421d2b8e79e1cab68c8126d5075CVE reference
- https://bugzilla.suse.com/show_bug.cgi?id=1208703CVE reference
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.