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NVD / CVE Program· CNA Linux

CVE-2026-43183: media: cx25821: Fix a resource leak in cx25821_dev_setup()

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: 0.12% (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 071bfc6e723aabbbf08f0d439fb913cd01eb8de2, 4010e596d23cda6de65acb14f7fd4ce8289f1d49, 68cd8ac994cac38a305200f638b30e13c690753b.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 071bfc6e723aabbbf08f0d439fb913cd01eb8de2, 4010e596d23cda6de65acb14f7fd4ce8289f1d49, 68cd8ac994cac38a305200f638b30e13c690753b 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: cx25821: Fix a resource leak in cx25821_dev_setup() Add release_mem_region() if ioremap() fails to release the memory region obtained by cx25821_get_resources().

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
May 6, 2026
Updated
Jun 17, 2026
EPSS
0.1% · 2th 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.

Follow CVE-2026-43183

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

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel2.6.32 and later · before 5.10.252
  • linux linux kernel5.11 and later · before 5.15.202
  • linux linux kernel5.16 and later · before 6.1.165
  • linux linux kernel6.2 and later · before 6.6.128
  • linux linux kernel6.7 and later · before 6.12.75
  • linux linux kernel6.13 and later · before 6.18.16
  • linux linux kernel6.19 and later · before 6.19.6

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

    • 2.6.32affected
    • 02b20b0b4cde011f7ad6b5363fb88b93f7ad4e5b and later · before 9f1c926248bde95a77ca104ab525467470607836affected · git
    • 02b20b0b4cde011f7ad6b5363fb88b93f7ad4e5b and later · before 071bfc6e723aabbbf08f0d439fb913cd01eb8de2affected · git
    • 02b20b0b4cde011f7ad6b5363fb88b93f7ad4e5b and later · before f7759eb6738ee9fc296f6ab1705c6809947976f3affected · git
    • 02b20b0b4cde011f7ad6b5363fb88b93f7ad4e5b and later · before 4010e596d23cda6de65acb14f7fd4ce8289f1d49affected · git
    • 02b20b0b4cde011f7ad6b5363fb88b93f7ad4e5b and later · before e220ec4c4596d634685b8a08d79ad876a720b466affected · git
    • 02b20b0b4cde011f7ad6b5363fb88b93f7ad4e5b and later · before b7210170b10e2d17f7a4f6b9d39cc092442db860affected · git
    • 02b20b0b4cde011f7ad6b5363fb88b93f7ad4e5b and later · before 80ce3797dc99dae4ce8b939626b891c9eb85139faffected · git
    • 02b20b0b4cde011f7ad6b5363fb88b93f7ad4e5b and later · before 68cd8ac994cac38a305200f638b30e13c690753baffected · git
    • before 2.6.32not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.170-16.1.170-1
Debian:13linuxbefore 6.12.85-16.12.85-1
Debian:14linuxbefore 6.19.6-16.19.6-1

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-2026-43181May 6, 2026 · gpio: sysfs: fix chip removal with GPIOs exported over sysfs
    22Monitor
  • ← EarlierCVE-2026-43182May 6, 2026 · media: ccs: Avoid possible division by zero
    22Monitor
  • Later →CVE-2026-43184May 6, 2026 · rnbd-srv: Zero the rsp buffer before using it
    30Monitor

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 Linux071bfc6e723aabbbf08f0d439fb913cd01eb8de2Vendor (CNA)
Linux Linux4010e596d23cda6de65acb14f7fd4ce8289f1d49Vendor (CNA)
Linux Linux68cd8ac994cac38a305200f638b30e13c690753bVendor (CNA)
Linux Linux80ce3797dc99dae4ce8b939626b891c9eb85139fVendor (CNA)
Linux Linux9f1c926248bde95a77ca104ab525467470607836Vendor (CNA)
Linux Linuxb7210170b10e2d17f7a4f6b9d39cc092442db860Vendor (CNA)
Linux Linuxe220ec4c4596d634685b8a08d79ad876a720b466Vendor (CNA)
Linux Linuxf7759eb6738ee9fc296f6ab1705c6809947976f3Vendor (CNA)
debian:linux6.1.170-1 · 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).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

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-401 · Missing Release of Memory after Effective Lifetime

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