Is CVE-2026-31776 in the CISA KEV catalog?

No. CVE-2026-31776 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-31776?

CVE-2026-31776 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2026-31776?

CVE-2026-31776 has an EPSS score of 0.12% (2th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-31776?

Upgrade linux on debian unstable to 6.19.12-1 or later.

CVE & CISA-KEV Catalog

CVE-2026-31776

HIGH

7.8

CVSS v3

NVD

Description

In the Linux kernel, the following vulnerability has been resolved: ALSA: ctxfi: Fix missing SPDIFI1 index handling SPDIF1 DAIO type isn't properly handled in daio_device_index() for hw20k2, and it returned -EINVAL, which ended up with the out-of-bounds array access. Follow the hw20k1 pattern and return the proper index for this type, too.

CWE-129

How to fix

Remediation Available

linuxDebian

Fixed in:6.19.12-1CVE-2026-31776

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.12%probability of exploitation in 30 days

2ndpercentile

Low risk: more likely to be exploited than 2% of all known CVEs.

References

Patch2

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-07.