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CVE-2025-38693· NVD / CVE Program· CNA Linux

media: dvb-frontends: w7090p: fix null-ptr-deref in w7090p_tuner_write_serpar and w7090p_tuner_read_serpar

In the Linux kernel, the following vulnerability has been resolved: media: dvb-frontends: w7090p: fix null-ptr-deref in w7090p_tuner_write_serpar and w7090p_tuner_read_serpar In w7090p_tuner_write_serpar, 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 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
Jun 17, 2026
EPSS
0.2% · 6th percentile
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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 · 0.2%

Affected systems

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 7a41ecfc3415ebe3b4c44f96b3337691dcf431a3affected · git
    • 713d54a8bd812229410a1902cd9b332a2a27af9f and later · before b3d77a3fc71c084575d3df4ec6544b3fb6ce587daffected · git
    • 713d54a8bd812229410a1902cd9b332a2a27af9f and later · before 17b30e5ded062bd74f8ca6f317e1d415a8680665affected · git
    • 713d54a8bd812229410a1902cd9b332a2a27af9f and later · before 454a443eaa792c8865c861a282fe6d4f596abc3aaffected · git
    • 713d54a8bd812229410a1902cd9b332a2a27af9f and later · before 6bbaec6a036940e22318f0454b50b8000845ab59affected · git
    • 713d54a8bd812229410a1902cd9b332a2a27af9f and later · before f98132a59ccc59a8b97987363bc99c8968934756affected · git
    • 713d54a8bd812229410a1902cd9b332a2a27af9f and later · before 99690a494d91a0dc86cebd628da4c62c40552bcbaffected · git
    • 713d54a8bd812229410a1902cd9b332a2a27af9f and later · before 39b06b93f24dff923c4183d564ed28c039150554affected · git
    • 713d54a8bd812229410a1902cd9b332a2a27af9f and later · before ed0234c8458b3149f15e496b48a1c9874dd24a1baffected · 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

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  • 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
  • CVE-2019-13272In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to creKEV
    77This week
  • CVE-2013-6282The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the v6k and v7 ARM platforms do not validate certain addKEV
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  • CVE-2013-2094The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9 uses an incorrect integer data type, which allows loKEV
    77This week

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 Linux17b30e5ded062bd74f8ca6f317e1d415a8680665Vendor (CNA)
Linux Linux39b06b93f24dff923c4183d564ed28c039150554Vendor (CNA)
Linux Linux454a443eaa792c8865c861a282fe6d4f596abc3aVendor (CNA)
Linux Linux6bbaec6a036940e22318f0454b50b8000845ab59Vendor (CNA)
Linux Linux7a41ecfc3415ebe3b4c44f96b3337691dcf431a3Vendor (CNA)
Linux Linux99690a494d91a0dc86cebd628da4c62c40552bcbVendor (CNA)
Linux Linuxb3d77a3fc71c084575d3df4ec6544b3fb6ce587dVendor (CNA)
Linux Linuxed0234c8458b3149f15e496b48a1c9874dd24a1bVendor (CNA)
Linux Linuxf98132a59ccc59a8b97987363bc99c8968934756Vendor (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.

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
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.

Noroxi analysis

No Noroxi analysis for this record yet

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Change log

  1. Fix✗ → ✓

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

References

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

All records