Is CVE-2026-31777 in the CISA KEV catalog?

No. CVE-2026-31777 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-31777?

CVE-2026-31777 has a CVSS v3 base score of 7.0 (Important).

What is the EPSS score for CVE-2026-31777?

CVE-2026-31777 has an EPSS score of 0.11% (1th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-31777?

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

CVE & CISA-KEV Catalog

CVE-2026-31777

HIGH

7.0

CVSS v3

NVD

Description

In the Linux kernel, the following vulnerability has been resolved: ALSA: ctxfi: Check the error for index mapping The ctxfi driver blindly assumed a proper value returned from daio_device_index(), but it's not always true. Add a proper error check to deal with the error from the function.

How to fix

Remediation Available

linuxDebian

Fixed in:6.19.12-1CVE-2026-31777

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 ComplexityHigh

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.11%probability of exploitation in 30 days

1stpercentile

Low risk: more likely to be exploited than 1% of all known CVEs.

References

Patch2

Embed a live status badge for CVE-2026-31777

Markdown

[![CVE-2026-31777](https://tridentstack.com/cve/badge/CVE-2026-31777.svg)](https://tridentstack.com/cve/CVE-2026-31777)

HTML

<a href="https://tridentstack.com/cve/CVE-2026-31777"><img src="https://tridentstack.com/cve/badge/CVE-2026-31777.svg" alt="CVE-2026-31777"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

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.