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NVD / CVE Program· CNA Linux

CVE-2025-38027: regulator: max20086: fix invalid memory access

HighCVSS 7.1 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 28/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.20% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 5578ab04bd7732f470fc614bbc0a924900399fb8, 6b0cd72757c69bc2d45da42b41023e288d02e772, 6ba30f7aa2c550b2ac04f16b81a19a8c045b8660.

Low priority for now. Upgrade to Linux Linux 5578ab04bd7732f470fc614bbc0a924900399fb8, 6b0cd72757c69bc2d45da42b41023e288d02e772, 6ba30f7aa2c550b2ac04f16b81a19a8c045b8660 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: regulator: max20086: fix invalid memory access max20086_parse_regulators_dt() calls of_regulator_match() using an array of struct of_regulator_match allocated on the stack for the matches argument. of_regulator_match() calls devm_of_regulator_put_matches(), which calls devres_alloc() to allocate a struct devm_of_regulator_matches which will be de-allocated using devm_of_regulator_put_matches(). struct devm_of_regulator_matches is populated with the stack allocated matches array. If the device fails to probe, devm_of_regulator_put_matches() will be called and will try to call of_node_put() on that stack pointer, generating the following dmesg entries: max20086 6-0028: Failed to read DEVICE_ID reg: -121 kobject: '\xc0$\xa5\x03' (000000002cebcb7a): is not initialized, yet kobject_put() is being called. Followed by a stack trace matching the call flow described above. Switch to allocating the matches array using devm_kcalloc() to avoid accessing the stack pointer long after it's out of scope. This also has the advantage of allowing multiple max20086 to probe without overriding the data stored inside the global of_regulator_match.

Published
Jun 18, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 10th percentile

Report tools

JSON

Action score

28

Monitor

Low priority for now.

CVSS
28 / 40 · 7.1 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

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  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel
debiandebian linux

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 5.17affected
    • bfff546aae50ae68ed395bf0e0848188d27b0ba3 and later · before 6ba30f7aa2c550b2ac04f16b81a19a8c045b8660affected · git
    • bfff546aae50ae68ed395bf0e0848188d27b0ba3 and later · before 7bddac8603d4e396872c2fbf4403ec08e7b1d7c8affected · git
    • bfff546aae50ae68ed395bf0e0848188d27b0ba3 and later · before d2a9a92bb4cc7568cff68241b0051dc7268bdc68affected · git
    • bfff546aae50ae68ed395bf0e0848188d27b0ba3 and later · before 5578ab04bd7732f470fc614bbc0a924900399fb8affected · git
    • bfff546aae50ae68ed395bf0e0848188d27b0ba3 and later · before 6b0cd72757c69bc2d45da42b41023e288d02e772affected · git
    • before 5.17not affected · semver
    • 6.1.140 and later · up to and including 6.1.*not affected · semver
    • 6.6.92 and later · up to and including 6.6.*not affected · semver
    • 6.12.30 and later · up to and including 6.12.*not affected · semver
Affected versions · NVD (6)

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • debian debian linux11.0
  • linux linux kernel5.17 and later · before 6.1.140
  • linux linux kernel6.2 and later · before 6.6.92
  • linux linux kernel6.7 and later · before 6.12.30
  • linux linux kernel6.13 and later · before 6.14.8
  • linux linux kernel6.15

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.140-16.1.140-1
Debian:13linuxbefore 6.12.30-16.12.30-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe…KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2025-38024Jun 18, 2025 · RDMA/rxe: Fix slab-use-after-free Read in rxe_queue_cleanup bug
    31Monitor
  • ← EarlierCVE-2025-38025Jun 18, 2025 · iio: adc: ad7606: check for NULL before calling sw_mode_config()
    22Monitor
  • Later →CVE-2025-38028Jun 18, 2025 · NFS/localio: Fix a race in nfs_local_open_fh()
    18Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux5578ab04bd7732f470fc614bbc0a924900399fb8Vendor (CNA)
Linux Linux6b0cd72757c69bc2d45da42b41023e288d02e772Vendor (CNA)
Linux Linux6ba30f7aa2c550b2ac04f16b81a19a8c045b8660Vendor (CNA)
Linux Linux7bddac8603d4e396872c2fbf4403ec08e7b1d7c8Vendor (CNA)
Linux Linuxd2a9a92bb4cc7568cff68241b0051dc7268bdc68Vendor (CNA)
debian:linux6.1.140-1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-125 · Out-of-bounds Read

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

References

Show all references (5 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records