CVSS 3.1
5.5 mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HCVE-2026-52964
Medium (5.5) in linux linux kernel. EPSS 0.2% chance of exploitation in the next 30 days.
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.
Severity
- EPSS
- 0.2% chance of exploitation in the next 30 days; higher than 5% of CVEs (scores of 2026-10-31)
- Published
- Modified
- Record from
- the NVD, synced
Affected
- linux:linux_kernel
References
- https://git.kernel.org/stable/c/17e76b19de1aff5ff4de64d269290bd1b07a01d3
- https://git.kernel.org/stable/c/918be519c7876329e1b6e2ea1c59f0b75e792dca
- https://git.kernel.org/stable/c/a310b4bebda5e4a1b26520c0cc5145ccd6d617e2
- https://git.kernel.org/stable/c/f9c184a83574549a36ea69b755f650e57d164c78
- https://git.kernel.org/stable/c/fafc97bd01e4c737eaeafadfdadb1af4bbfa7307