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NVD / CVE Program· CNA Linux

CVE-2026-68226: media: cx23885: add ioremap return check and cleanup

Noroxi assessment

Priority: Monitor (action score 0/100)

  • 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: 0.22% (FIRST EPSS).
  • Fixed version: Linux Linux 6a7636e3d5204fb18fdf1c3f909a3d9d9e24064c, 83540d86d717735b52a43e4ba1b784da5cc2310a, 8fbdca4c99f68734e9b6c030973fb61a11bede15; azl3 kernel 6.6.143.1-1 on Azure Linux 3.0 6.6.150.1-1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 6a7636e3d5204fb18fdf1c3f909a3d9d9e24064c, 83540d86d717735b52a43e4ba1b784da5cc2310a, 8fbdca4c99f68734e9b6c030973fb61a11bede15; azl3 kernel 6.6.143.1-1 on Azure Linux 3.0 6.6.150.1-1 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: media: cx23885: add ioremap return check and cleanup Add a check for the return value of pci_ioremap_bar() in cx23885_dev_setup(). If ioremap for BAR0 fails, release the already allocated PCI memory region, decrement the device count, and return -ENODEV. This prevents a potential null pointer dereference and ensures proper cleanup on memory mapping failure.

—No exploit Fix available
Published
Aug 10, 2026
Updated
Nov 6, 2026
EPSS
0.2% · 12th percentile
CWE
—

Report tools

JSON

Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

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

If any of these changes, we'll tell you in the daily email digest.

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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.

—

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

    • 2.6.24affected
    • d19770e5178a4bc49641711246360c25781d20a4 and later · before f58f4b571bd75c78bbf15441086ba0c2830c1aa5affected · git
    • d19770e5178a4bc49641711246360c25781d20a4 and later · before 9052fec0bb84eace81ac7bad071266052870cdf3affected · git
    • d19770e5178a4bc49641711246360c25781d20a4 and later · before 6a7636e3d5204fb18fdf1c3f909a3d9d9e24064caffected · git
    • d19770e5178a4bc49641711246360c25781d20a4 and later · before 8fbdca4c99f68734e9b6c030973fb61a11bede15affected · git
    • d19770e5178a4bc49641711246360c25781d20a4 and later · before 83540d86d717735b52a43e4ba1b784da5cc2310aaffected · git
    • d19770e5178a4bc49641711246360c25781d20a4 and later · before c68c4ce72feb6fcccc843eb3baa7af60189ed567affected · git
    • d19770e5178a4bc49641711246360c25781d20a4 and later · before ff3c670a1de3a714f5644e37b9446fe7c3299fd3affected · git
    • d19770e5178a4bc49641711246360c25781d20a4 and later · before a0701e387b46e2481c05b47f1235b954bfc2af3eaffected · git
    • before 2.6.24not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.187-16.1.187-1
Debian:12linux-6.12before 6.12.101-1~deb12u16.12.101-1~deb12u1
Debian:13linuxbefore 6.12.101-16.12.101-1
Debian:14linuxbefore 7.1.6-17.1.6-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2026-68217Aug 10, 2026 · media: pwc: Drain fill_buf on start_streaming() failure
    0Monitor
  • ← EarlierCVE-2026-68218Aug 10, 2026 · media: pci: dm1105: Free allocated workqueue
    0Monitor
  • Later →CVE-2026-68227Aug 10, 2026 · media: cx231xx: fix devres lifetime
    0Monitor

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 Linux6a7636e3d5204fb18fdf1c3f909a3d9d9e24064cVendor (CNA)
Linux Linux83540d86d717735b52a43e4ba1b784da5cc2310aVendor (CNA)
Linux Linux8fbdca4c99f68734e9b6c030973fb61a11bede15Vendor (CNA)
Linux Linux9052fec0bb84eace81ac7bad071266052870cdf3Vendor (CNA)
Linux Linuxa0701e387b46e2481c05b47f1235b954bfc2af3eVendor (CNA)
Linux Linuxc68c4ce72feb6fcccc843eb3baa7af60189ed567Vendor (CNA)
Linux Linuxf58f4b571bd75c78bbf15441086ba0c2830c1aa5Vendor (CNA)
Linux Linuxff3c670a1de3a714f5644e37b9446fe7c3299fd3Vendor (CNA)
azl3 kernel 6.6.143.1-1 on Azure Linux 3.06.6.150.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
debian:linux6.1.187-1 · Debian:12Package registry (OSV)
debian:linux-6.126.12.101-1~deb12u1 · 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).

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

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

—

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 (7 more)

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

All records