CVE-2026-31777

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 36/100
Published: 2026-05-01 Modified: 2026-11-11 First seen: 2026-11-06 Status: active

Attack Surface

Low Complexity No Interaction

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
S: Unchanged
C: None
I: None
A: High

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.

Affected Software (11)

VendorProductVersion
Linux Linux 8cc72361481f00253f1e468ade5795427386d593 < 971854e7b6ddda78669d3d0cf6566c7b8aca1fdb
Linux Linux 8cc72361481f00253f1e468ade5795427386d593 < d4d3b8cbb70a2de247cbfe99bdb232aef9ed59bc
Linux Linux 8cc72361481f00253f1e468ade5795427386d593 < 277c6960d4ddb94d16198afd70c92c3d4593d131
Linux Linux 2.6.31
linux linux_kernel 2.6.31 – 6.19.12
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0

Bug Bounty Relevance

36 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

5.5 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.12%
Raw Score 0.001210
Percentile 1.9%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00121
2026-11-12
0.00121
2026-11-10
0.00121
2026-11-09
0.00121
2026-11-08
0.00121
2026-11-07
0.00121
2026-11-06
0.00121

Intelligence Sources

mitre ref →
nvd ref →