CVE-2026-52964
ALSA: usb-audio: Bound MIDI 2.0 endpoint descriptor scans
Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Bound MIDI 2.0 endpoint descriptor scans The USB MIDI 2.0 endpoint parser has the same descriptor walking pattern as the legacy MIDI parser. It validates bLength against bNumGrpTrmBlock before reading baAssoGrpTrmBlkID[], but not against the remaining bytes in the endpoint-extra scan. A malformed device can therefore make later baAssoGrpTrmBlkID[] reads consume bytes past the walked descriptor. Reject zero-length and overlong descriptors while walking endpoint extras.
INFO
Published Date :
June 24, 2026, 5:17 p.m.
Last Modified :
July 14, 2026, 4:12 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update the Linux kernel to the latest version.
- Apply relevant security patches for ALSA.
- Reboot the system after updating.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-52964.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-52964 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-52964
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-52964 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-52964 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Jul. 14, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.12.91 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.13 up to (excluding) 6.18.33 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.19 up to (excluding) 7.0.10 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.5 up to (excluding) 6.6.141 Added Reference Type kernel.org: https://git.kernel.org/stable/c/17e76b19de1aff5ff4de64d269290bd1b07a01d3 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/918be519c7876329e1b6e2ea1c59f0b75e792dca Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/a310b4bebda5e4a1b26520c0cc5145ccd6d617e2 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/f9c184a83574549a36ea69b755f650e57d164c78 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/fafc97bd01e4c737eaeafadfdadb1af4bbfa7307 Types: Patch -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 24, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'ff49d1df79aef7580fe3ac99d17c3f886655d080', 'lessThan': 'fafc97bd01e4c737eaeafadfdadb1af4bbfa7307', 'versionType': 'git'}, {'status': 'affected', 'version': 'ff49d1df79aef7580fe3ac99d17c3f886655d080', 'lessThan': 'a310b4bebda5e4a1b26520c0cc5145ccd6d617e2', 'versionType': 'git'}, {'status': 'affected', 'version': 'ff49d1df79aef7580fe3ac99d17c3f886655d080', 'lessThan': 'f9c184a83574549a36ea69b755f650e57d164c78', 'versionType': 'git'}, {'status': 'affected', 'version': 'ff49d1df79aef7580fe3ac99d17c3f886655d080', 'lessThan': '17e76b19de1aff5ff4de64d269290bd1b07a01d3', 'versionType': 'git'}, {'status': 'affected', 'version': 'ff49d1df79aef7580fe3ac99d17c3f886655d080', 'lessThan': '918be519c7876329e1b6e2ea1c59f0b75e792dca', 'versionType': 'git'}], 'programFiles': ['sound/usb/midi2.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.5'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.5', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.141', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.91', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.33', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.0.10', 'versionType': 'semver', 'lessThanOrEqual': '7.0.*'}, {'status': 'unaffected', 'version': '7.1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['sound/usb/midi2.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Bound MIDI 2.0 endpoint descriptor scans The USB MIDI 2.0 endpoint parser has the same descriptor walking pattern as the legacy MIDI parser. It validates bLength against bNumGrpTrmBlock before reading baAssoGrpTrmBlkID[], but not against the remaining bytes in the endpoint-extra scan. A malformed device can therefore make later baAssoGrpTrmBlkID[] reads consume bytes past the walked descriptor. Reject zero-length and overlong descriptors while walking endpoint extras. Added Reference https://git.kernel.org/stable/c/17e76b19de1aff5ff4de64d269290bd1b07a01d3 Added Reference https://git.kernel.org/stable/c/918be519c7876329e1b6e2ea1c59f0b75e792dca Added Reference https://git.kernel.org/stable/c/a310b4bebda5e4a1b26520c0cc5145ccd6d617e2 Added Reference https://git.kernel.org/stable/c/f9c184a83574549a36ea69b755f650e57d164c78 Added Reference https://git.kernel.org/stable/c/fafc97bd01e4c737eaeafadfdadb1af4bbfa7307