CVE-2026-46018

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 36/100
Published: 2026-05-27 Modified: 2026-11-06 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: usb-audio: stop parsing UAC2 rates at MAX_NR_RATES parse_uac2_sample_rate_range() caps the number of enumerated rates at MAX_NR_RATES, but it only breaks out of the current rate loop. A malformed UAC2 RANGE response with additional triplets continues parsing the remaining triplets and repeatedly prints "invalid uac2 rates" while probe still holds register_mutex. Stop the whole parse once the cap is reached and return the number of rates collected so far.

Affected Software (14)

VendorProductVersion
Linux Linux 4fa0e81b83503900be277e6273a79651b375e288 < 5436bc1b07d4656f99412dc72871d250d7d55205
Linux Linux 4fa0e81b83503900be277e6273a79651b375e288 < 0da05fedf5e1966b7e7d389866cb86fcf09f4b32
Linux Linux 4fa0e81b83503900be277e6273a79651b375e288 < f14bd323eec4b4f0ef662520ec852e593ece1d4c
Linux Linux 4fa0e81b83503900be277e6273a79651b375e288 < ab5ba9fd138758ddc50222264ff246b31e397abf
Linux Linux 4fa0e81b83503900be277e6273a79651b375e288 < ba036305323814ec1f8655313b2fa6a0f7048716
Linux Linux 4fa0e81b83503900be277e6273a79651b375e288 < 4d7893a137eadb6163ea4298bf67d74b811d76ef
Linux Linux 4fa0e81b83503900be277e6273a79651b375e288 < a0b78639ef09b2e77974a3de3b1c07f6de3c5e56
Linux Linux 4fa0e81b83503900be277e6273a79651b375e288 < 3c318f97dcc50b2e0556a1813bd6958678e881fd
Linux Linux 44f059fb742aac78cffdab5e0d8fe0c9910c1ded
Linux Linux c25a53781f61c78bf2a2fa308bbd35b42ba346f6
Linux Linux 3.0.81 < 3.1
Linux Linux 3.2.47 < 3.3
Linux Linux 3.3
linux linux_kernel 3.0.81 – 3.1

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

0.18%
Raw Score 0.001810
Percentile 7.8%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00181
2026-11-12
0.00181
2026-11-10
0.00181
2026-11-09
0.00181
2026-11-08
0.00181
2026-11-07
0.00181
2026-11-06
0.00181

Intelligence Sources

mitre ref →
nvd ref →