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NVD / CVE Program· CNA Linux

CVE-2025-38548: hwmon: (corsair-cpro) Validate the size of the received input buffer

Noroxi assessment

Priority: Monitor (action score 31/100)

  • 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 0db770e2922389753ddbd6663a5516a32b97b743, 2771d2ee3d95700f34e1e4df6a445c90565cd4e9, 2e6f4d9cfbda52700c126c5a2b93dd2042e8680c; 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 0db770e2922389753ddbd6663a5516a32b97b743, 2771d2ee3d95700f34e1e4df6a445c90565cd4e9, 2e6f4d9cfbda52700c126c5a2b93dd2042e8680c; 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: hwmon: (corsair-cpro) Validate the size of the received input buffer Add buffer_recv_size to store the size of the received bytes. Validate buffer_recv_size in send_usb_cmd().

HighCVSS 7.8 · v3.1—No exploit Fix available
Published
Aug 16, 2025
Updated
Jun 17, 2026
EPSS
0.1% · 7th percentile
CWE
—

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 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.

Follow CVE-2025-38548

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 kernel5.11 and later · before 5.15.190
  • linux linux kernel5.16 and later · before 6.1.147
  • linux linux kernel6.2 and later · before 6.6.100
  • linux linux kernel5.9 and later · before 5.10.241
  • linux linux kernel6.13 and later · before 6.15.8
  • linux linux kernel6.7 and later · before 6.12.40
  • 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

    • 5.9affected
    • 40c3a445422579db8ad96c234dbe6c0ab3f6b936 and later · before 2e6f4d9cfbda52700c126c5a2b93dd2042e8680caffected · git
    • 40c3a445422579db8ad96c234dbe6c0ab3f6b936 and later · before 4eb5cc48399f89b63acdbfe912fa5c8fe2900147affected · git
    • 40c3a445422579db8ad96c234dbe6c0ab3f6b936 and later · before 0db770e2922389753ddbd6663a5516a32b97b743affected · git
    • 40c3a445422579db8ad96c234dbe6c0ab3f6b936 and later · before eda5e38cc4dd2dcb422840540374910ef2818494affected · git
    • 40c3a445422579db8ad96c234dbe6c0ab3f6b936 and later · before 3c4bdc8a852e446080adc8ceb90ddd67a56e1bb8affected · git
    • 40c3a445422579db8ad96c234dbe6c0ab3f6b936 and later · before 2771d2ee3d95700f34e1e4df6a445c90565cd4e9affected · git
    • 40c3a445422579db8ad96c234dbe6c0ab3f6b936 and later · before 495a4f0dce9c8c4478c242209748f1ee9e4d5820affected · git
    • before 5.9not affected · semver
    • 5.10.241 and later · up to and including 5.10.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.147-16.1.147-1
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-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-2025-38545Aug 16, 2025 · net: ethernet: ti: am65-cpsw-nuss: Fix skb size by accounting for skb_shared_info
    22Monitor
  • ← EarlierCVE-2025-38547Aug 16, 2025 · iio: adc: axp20x_adc: Add missing sentinel to AXP717 ADC channel maps
    22Monitor
  • Later →CVE-2025-38549Aug 16, 2025 · efivarfs: Fix memory leak of efivarfs_fs_info in fs_context error paths
    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 Linux0db770e2922389753ddbd6663a5516a32b97b743Vendor (CNA)
Linux Linux2771d2ee3d95700f34e1e4df6a445c90565cd4e9Vendor (CNA)
Linux Linux2e6f4d9cfbda52700c126c5a2b93dd2042e8680cVendor (CNA)
Linux Linux3c4bdc8a852e446080adc8ceb90ddd67a56e1bb8Vendor (CNA)
Linux Linux495a4f0dce9c8c4478c242209748f1ee9e4d5820Vendor (CNA)
Linux Linux4eb5cc48399f89b63acdbfe912fa5c8fe2900147Vendor (CNA)
Linux Linuxeda5e38cc4dd2dcb422840540374910ef2818494Vendor (CNA)
azl3 kernel 6.6.96.2-2 on Azure Linux 3.06.6.104.2-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
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.

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
high · data can be read
Integrity
high · data or configuration can be modified
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
High
Availability impact
High

Weakness class (CWE)

—

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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 (8 more)

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

All records