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Medium 5.5Published Jul 25, 2026

CVE-2026-64334USB: serial: digi_acceleport: fix hard lockup on disconnect

Updated under an hour ago ()

Does this affect you?

It affects Linux and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

In the Linux kernel, the following vulnerability has been resolved: USB: serial: digi_acceleport: fix hard lockup on disconnect If submitting the OOB write urb fails persistently (e.g if the device is being disconnected) the driver would loop indefinitely with interrupts disabled. Check for urb submission errors when sending OOB commands to avoid hanging if, for example, open(), set_termios() or close() races with a physical disconnect. This is issue was flagged by Sashiko when reviewing an unrelated change to the driver.

CVSS
5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE)
Not given
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
Linux
NVD analysis
Analyzed
Record last updated
Aug 17, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Linux Linux
linux:linux (from the name)
from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 6e51147c2744d15730084dc89cc99180d3de4184; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 6a8592ace932081ea11aea41c460a1ca0f6344a4; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 5a82d842e8c35227d7227f19e5e654df1451782c; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before bcfeae431db9986c2b313e6a760f2ac8df61e138; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 2067b3838da6e4af03bae3630414193188d754b2; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 2b7dc482f859f2d027db07ff0efc1c5df5b3451a; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 79bc131df0e50f8f663c1fdbbe952aaf193a8d39; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 5c1ea24b53bf3bfb859f0a05573997487975da23
CNA record
linux linux_kernel
linux:linux_kernel
from 2.6.12.1 before 5.10.261; from 5.11 before 5.15.212; from 5.16 before 6.1.178; from 6.2 before 6.6.145; from 6.7 before 6.12.96; from 6.13 before 6.18.39; from 6.19 before 7.1.4; 2.6.12; and 6 more ranges
NVD

References

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The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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