Security readout for executives and security teams
Plain-English summary
A missing end marker in the Linux AXP717 ADC channel map can cause the kernel to access beyond the intended map, producing a KASAN memory-safety warning. The supplied CVSS score is 7.3, reflecting potentially serious confidentiality and availability consequences for a local, low-privileged attacker. Evidence does not establish practical exploitability.
Executive priority
Treat as a high-priority, targeted kernel update rather than an internet-wide emergency. Prioritize embedded, appliance, and Linux environments using AXP717 ADC functionality, especially where untrusted users have local access. Confirm vendor-fixed builds promptly; the supplied evidence does not support claims of active exploitation.
Technical view
The axp20x_adc driver’s AXP717 channel maps lack a sentinel entry. Code expecting that terminator may continue beyond the map boundary, triggering KASAN. The upstream resolution adds the missing sentinel. The supplied CVSS vector requires local access and low privileges, with high confidentiality and availability impact and low integrity impact.
Likely exposure
Exposure is most plausible on Linux systems using the AXP717 ADC functionality in the affected axp20x_adc driver. The bundle marks Linux versions 6.12, 6.12.40, 6.15.8, and 6.16 as affected, but does not provide a complete, clearly bounded version range. Confirm against vendor advisories and kernel provenance.
Exploitation context
The supplied record is not in KEV, and no cited source reports active exploitation or a public exploit. The CVSS vector describes a local, low-privileged attack path without user interaction. A KASAN warning proves an invalid memory access condition during testing, but the bundle does not demonstrate reliable security impact or weaponization.
Researcher notes
The source bundle provides no CWE and does not document the precise out-of-bounds operation, trigger conditions, reachable data, or exploit reliability. The repeated commit identifier and ambiguous affected-version presentation reduce precision. Review the referenced stable-kernel commits and relevant vendor backports to establish introduction points, fixed branches, and whether the warning can produce security-relevant behavior.
Mitigation direction
- Update to a vendor-supported kernel containing the referenced sentinel fix.
- Check distribution or device-vendor advisories for exact fixed package versions.
- Prioritize systems that use AXP717 ADC hardware or the affected driver.
- Restrict local account access until remediation is confirmed.
Validation and detection
- Inventory kernel versions and vendor package revisions on potentially affected systems.
- Determine whether systems use AXP717 ADC functionality through the axp20x_adc driver.
- Verify the deployed kernel includes one of the referenced corrective commits.
- Run vendor-approved regression testing after updating the kernel.
- Monitor kernel and KASAN logs for axp20x_adc-related memory warnings.
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
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CVE-2025-38547 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 7.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/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:L/A:H1.85.5LinuxVulnerability scoring details
Base CVSS 3.1 score
7.3HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/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.
Source materials
- CVE List V5 sourceCVE List V5
- https://git.kernel.org/stable/c/086a76474121bf2351438e311376ec67b410b2eaCVE reference, Linux
- https://git.kernel.org/stable/c/0c0c01c88bb69951539539d2001e67f0c613001fCVE reference, Linux
- https://git.kernel.org/stable/c/3281ddcea6429f7bc1fdb39d407752dd1371aba9CVE reference, Linux
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.