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NVD / CVE Program· CNA Linux

CVE-2025-38634: power: supply: cpcap-charger: Fix null check for power_supply_get_by_name

Noroxi assessment

Priority: Monitor (action score 22/100)

  • 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: 0.16% (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 27001e4f146624c4b3389b029bdc0f8049819560, 4ebbb9106aaa2fd58e0359bc3a2490953db2ef0c, 8e9bdb563916287ba1b4258812434e0585ac6d00; azl3 kernel 6.6.96.2-2 on Azure Linux 3.0 6.6.104.2-1.

Low priority for now. Upgrade to Linux Linux 27001e4f146624c4b3389b029bdc0f8049819560, 4ebbb9106aaa2fd58e0359bc3a2490953db2ef0c, 8e9bdb563916287ba1b4258812434e0585ac6d00; azl3 kernel 6.6.96.2-2 on Azure Linux 3.0 6.6.104.2-1 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: power: supply: cpcap-charger: Fix null check for power_supply_get_by_name In the cpcap_usb_detect() function, the power_supply_get_by_name() function may return `NULL` instead of an error pointer. To prevent potential null pointer dereferences, Added a null check.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Aug 22, 2025
Updated
Jun 17, 2026
EPSS
0.1% · 5th percentile

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

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

If any of these changes, we'll tell you in the daily email digest.

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • 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

Affected versions

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 kernel5.16 and later · before 6.1.148
  • linux linux kernel6.2 and later · before 6.6.102
  • linux linux kernel5.14 and later · before 5.15.190
  • linux linux kernel6.13 and later · before 6.15.10
  • linux linux kernel6.16 and later · before 6.16.1
  • linux linux kernel6.7 and later · before 6.12.42

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

    • 5.14affected
    • eab4e6d953c1059a30ac0f15826abc7dd2374d3c and later · before 4ebbb9106aaa2fd58e0359bc3a2490953db2ef0caffected · git
    • eab4e6d953c1059a30ac0f15826abc7dd2374d3c and later · before a2436263144980cc99a9860c7b43335847afbe53affected · git
    • eab4e6d953c1059a30ac0f15826abc7dd2374d3c and later · before 8e9bdb563916287ba1b4258812434e0585ac6d00affected · git
    • eab4e6d953c1059a30ac0f15826abc7dd2374d3c and later · before f642500aa7ed93d2606e4f929244cce9c7467b3aaffected · git
    • eab4e6d953c1059a30ac0f15826abc7dd2374d3c and later · before 9784d832d7c103539cd9afb376534eaa35815d3daffected · git
    • eab4e6d953c1059a30ac0f15826abc7dd2374d3c and later · before 27001e4f146624c4b3389b029bdc0f8049819560affected · git
    • eab4e6d953c1059a30ac0f15826abc7dd2374d3c and later · before d9fa3aae08f99493e67fb79413c0e95d30fca5e9affected · git
    • before 5.14not affected · semver
    • 5.15.190 and later · up to and including 5.15.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.148-16.1.148-1
Debian:13linuxbefore 6.12.43-16.12.43-1
Debian:14linuxbefore 6.16.3-16.16.3-1

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-2025-38631Aug 22, 2025 · clk: imx95-blk-ctl: Fix synchronous abort
    22Monitor
  • ← EarlierCVE-2025-38633Aug 22, 2025 · clk: spacemit: mark K1 pll1_d8 as critical
    22Monitor
  • Later →CVE-2025-38635Aug 22, 2025 · clk: davinci: Add NULL check in davinci_lpsc_clk_register()
    22Monitor

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 Linux27001e4f146624c4b3389b029bdc0f8049819560Vendor (CNA)
Linux Linux4ebbb9106aaa2fd58e0359bc3a2490953db2ef0cVendor (CNA)
Linux Linux8e9bdb563916287ba1b4258812434e0585ac6d00Vendor (CNA)
Linux Linux9784d832d7c103539cd9afb376534eaa35815d3dVendor (CNA)
Linux Linuxa2436263144980cc99a9860c7b43335847afbe53Vendor (CNA)
Linux Linuxd9fa3aae08f99493e67fb79413c0e95d30fca5e9Vendor (CNA)
Linux Linuxf642500aa7ed93d2606e4f929244cce9c7467b3aVendor (CNA)
azl3 kernel 6.6.96.2-2 on Azure Linux 3.06.6.104.2-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
debian:linux6.1.148-1 · 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.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

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
none
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
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-476 · NULL Pointer Dereference

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/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.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (7 more)

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

All records