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CVE-2025-38482· NVD / CVE Program· CNA Linux

comedi: das6402: Fix bit shift out of bounds

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: 0.18% (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 3eab654f5d199ecd45403c6588cda63e491fcfca, 4a3c18cde02e35aba87e0ad5672b3e1c72dda5a4, 70f2b28b5243df557f51c054c20058ae207baaac.

Low priority for now. Upgrade to Linux Linux 3eab654f5d199ecd45403c6588cda63e491fcfca, 4a3c18cde02e35aba87e0ad5672b3e1c72dda5a4, 70f2b28b5243df557f51c054c20058ae207baaac 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: comedi: das6402: Fix bit shift out of bounds When checking for a supported IRQ number, the following test is used: /* IRQs 2,3,5,6,7, 10,11,15 are valid for "enhanced" mode */ if ((1 << it->options[1]) & 0x8cec) { However, `it->options[i]` is an unchecked `int` value from userspace, so the shift amount could be negative or out of bounds. Fix the test by requiring `it->options[1]` to be within bounds before proceeding with the original test. Valid `it->options[1]` values that select the IRQ will be in the range [1,15]. The value 0 explicitly disables the use of interrupts.

HighCVSS 7.1 · v3.1—No exploit Fix available
Published
Jul 28, 2025
Updated
Jun 17, 2026
EPSS
0.1% · 7th 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 · 0.1%

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

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When you'll hear from us

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  • when exploit code appears or is weaponized
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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

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 kernel5.5 and later · before 5.10.241
  • linux linux kernel5.11 and later · before 5.15.190
  • linux linux kernel5.16 and later · before 6.1.147
  • linux linux kernel3.15 and later · before 5.4.297
  • linux linux kernel6.7 and later · before 6.12.40
  • linux linux kernel6.13 and later · before 6.15.8
  • linux linux kernel6.2 and later · before 6.6.100
  • linux linux kernel6.16

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

    • 3.15affected
    • 79e5e6addbb18bf56075f0ff552094a28636dd03 and later · before a15e9c175f783298c4ee48146be6841335400406affected · git
    • 79e5e6addbb18bf56075f0ff552094a28636dd03 and later · before de8da1063cce9234d55c8270d9bdf4cf84411c80affected · git
    • 79e5e6addbb18bf56075f0ff552094a28636dd03 and later · before 73f34d609397805c20d6b2ef5c07a4cbf7c4d63aaffected · git
    • 79e5e6addbb18bf56075f0ff552094a28636dd03 and later · before a18a42e77545afcacd6a2b8d9fc16191b87454dfaffected · git
    • 79e5e6addbb18bf56075f0ff552094a28636dd03 and later · before 8a3637027ceeba4ca5e500b23cb7d24c25592513affected · git
    • 79e5e6addbb18bf56075f0ff552094a28636dd03 and later · before 3eab654f5d199ecd45403c6588cda63e491fcfcaaffected · git
    • 79e5e6addbb18bf56075f0ff552094a28636dd03 and later · before 4a3c18cde02e35aba87e0ad5672b3e1c72dda5a4affected · git
    • 79e5e6addbb18bf56075f0ff552094a28636dd03 and later · before 70f2b28b5243df557f51c054c20058ae207baaacaffected · git
    • before 3.15not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.147-16.1.147-1
Debian:13linuxbefore 6.12.41-16.12.41-1
Debian:14linuxbefore 6.16.3-16.16.3-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-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
  • CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV
    83Now

Published before and after this one in the same product

  • ← EarlierCVE-2025-38480Jul 28, 2025 · comedi: Fix use of uninitialized data in insn_rw_emulate_bits()
    22Monitor
  • ← EarlierCVE-2025-38481Jul 28, 2025 · comedi: Fail COMEDI_INSNLIST ioctl if n_insns is too large
    22Monitor
  • Later →CVE-2025-38483Jul 28, 2025 · comedi: das16m1: Fix bit shift out of bounds
    28Monitor

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 Linux3eab654f5d199ecd45403c6588cda63e491fcfcaVendor (CNA)
Linux Linux4a3c18cde02e35aba87e0ad5672b3e1c72dda5a4Vendor (CNA)
Linux Linux70f2b28b5243df557f51c054c20058ae207baaacVendor (CNA)
Linux Linux73f34d609397805c20d6b2ef5c07a4cbf7c4d63aVendor (CNA)
Linux Linux8a3637027ceeba4ca5e500b23cb7d24c25592513Vendor (CNA)
Linux Linuxa15e9c175f783298c4ee48146be6841335400406Vendor (CNA)
Linux Linuxa18a42e77545afcacd6a2b8d9fc16191b87454dfVendor (CNA)
Linux Linuxde8da1063cce9234d55c8270d9bdf4cf84411c80Vendor (CNA)
debian:linux6.1.147-1 · 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.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

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
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

—

Change log

  1. Fix✗ → ✓

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

References

Show all references (9 more)

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

All records