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NVD / CVE Program· CNA Linux

CVE-2025-38694: media: dvb-frontends: dib7090p: fix null-ptr-deref in dib7090p_rw_on_apb()

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: 0.18% (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 09906650484a09b3a4d4b3d3065395856810becd, 0bb32863426afe0badac25c28d59021f211d0f48, 19eb5d8e6aa1169d368a4d69aae5572950deb89d.

Low priority for now. Upgrade to Linux Linux 09906650484a09b3a4d4b3d3065395856810becd, 0bb32863426afe0badac25c28d59021f211d0f48, 19eb5d8e6aa1169d368a4d69aae5572950deb89d 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: media: dvb-frontends: dib7090p: fix null-ptr-deref in dib7090p_rw_on_apb() In dib7090p_rw_on_apb, msg is controlled by user. When msg[0].buf is null and msg[0].len is zero, former checks on msg[0].buf would be passed. If accessing msg[0].buf[2] without sanity check, null pointer deref would happen. We add check on msg[0].len to prevent crash. Similar issue occurs when access msg[1].buf[0] and msg[1].buf[1]. Similar commit: commit 0ed554fd769a ("media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()")

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Sep 4, 2025
Updated
Nov 5, 2026
EPSS
0.1% · 7th 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%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

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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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 6.1.149
  • linux linux kernel2.6.39 and later · before 5.4.297
  • linux linux kernel6.7 and later · before 6.12.43
  • linux linux kernel6.13 and later · before 6.15.11
  • linux linux kernel6.16 and later · before 6.16.2
  • linux linux kernel6.2 and later · before 6.6.103

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

    • 2.6.39affected
    • 713d54a8bd812229410a1902cd9b332a2a27af9f and later · before bc07cae4f36bb18d5b6a9ed835c1278ca44ec82eaffected · git
    • 713d54a8bd812229410a1902cd9b332a2a27af9f and later · before ce8b7c711b9c4f040b5419729d0972db8e374324affected · git
    • 713d54a8bd812229410a1902cd9b332a2a27af9f and later · before 529fd5593b721e6f4370c591f5086649ed149ff6affected · git
    • 713d54a8bd812229410a1902cd9b332a2a27af9f and later · before c33280d6bd668dbdc5a5f07887cc63a52ab4789caffected · git
    • 713d54a8bd812229410a1902cd9b332a2a27af9f and later · before 09906650484a09b3a4d4b3d3065395856810becdaffected · git
    • 713d54a8bd812229410a1902cd9b332a2a27af9f and later · before 0bb32863426afe0badac25c28d59021f211d0f48affected · git
    • 713d54a8bd812229410a1902cd9b332a2a27af9f and later · before a0f744d6cdde81d7382e183f77a4080a39b206cdaffected · git
    • 713d54a8bd812229410a1902cd9b332a2a27af9f and later · before 19eb5d8e6aa1169d368a4d69aae5572950deb89daffected · git
    • 713d54a8bd812229410a1902cd9b332a2a27af9f and later · before ce5cac69b2edac3e3246fee03e8f4c2a1075238baffected · git

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.153-16.1.153-1
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-2025-38692Sep 4, 2025 · exfat: add cluster chain loop check for dir
    22Monitor
  • ← EarlierCVE-2025-38693Sep 4, 2025 · media: dvb-frontends: w7090p: fix null-ptr-deref in w7090p_tuner_write_serpar and w7090p_tuner_read_serpar
    22Monitor
  • Later →CVE-2025-38695Sep 4, 2025 · scsi: lpfc: Check for hdwq null ptr when cleaning up lpfc_vport structure
    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 Linux09906650484a09b3a4d4b3d3065395856810becdVendor (CNA)
Linux Linux0bb32863426afe0badac25c28d59021f211d0f48Vendor (CNA)
Linux Linux19eb5d8e6aa1169d368a4d69aae5572950deb89dVendor (CNA)
Linux Linux529fd5593b721e6f4370c591f5086649ed149ff6Vendor (CNA)
Linux Linuxa0f744d6cdde81d7382e183f77a4080a39b206cdVendor (CNA)
Linux Linuxbc07cae4f36bb18d5b6a9ed835c1278ca44ec82eVendor (CNA)
Linux Linuxc33280d6bd668dbdc5a5f07887cc63a52ab4789cVendor (CNA)
Linux Linuxce5cac69b2edac3e3246fee03e8f4c2a1075238bVendor (CNA)
Linux Linuxce8b7c711b9c4f040b5419729d0972db8e374324Vendor (CNA)
debian:linux6.1.153-1 · 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. SSVC exploitation— → none
  2. Fix✗ → ✓

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

References

Show all references (11 more)

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

All records