How severe is CVE-2026-43257?

CVE-2026-43257 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-43257 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-43257?

CVE-2026-43257 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-43257?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-43257 have an EU (EUVD) identifier?

Yes. CVE-2026-43257 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-27818.

When was CVE-2026-43257 published?

CVE-2026-43257 was published on 2026-05-06 and last updated on 2026-06-17.

CVE-2026-43257

CVE-2026-43257 is a medium-severity vulnerability in Linux Linux Kernel with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-772.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 0% (3rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-27818
Weakness: CWE-772
Affected product: Linux Linux Kernel
Published: 2026-05-06
Last modified: 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: media: cx88: Add missing unmap in snd_cx88_hw_params() In error path, add cx88_alsa_dma_unmap() to release resource acquired by cx88_alsa_dma_map().

Frequently asked questions

What is CVE-2026-43257?: In the Linux kernel, the following vulnerability has been resolved: media: cx88: Add missing unmap in snd_cx88_hw_params() In error path, add cx88_alsa_dma_unmap() to release resource acquired by cx88_alsa_dma_map().
How severe is CVE-2026-43257?: CVE-2026-43257 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-43257 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-43257?: CVE-2026-43257 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-43257?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-43257 have an EU (EUVD) identifier?: Yes. CVE-2026-43257 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-27818.
When was CVE-2026-43257 published?: CVE-2026-43257 was published on 2026-05-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

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