What’s Vulnerable › Vulnerabilities

CVE-2026-64335: USB: serial: digi_acceleport: fix broken rx after throttle

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-25 · updated 2026-09-03

Description

In the Linux kernel, the following vulnerability has been resolved: USB: serial: digi_acceleport: fix broken rx after throttle If the port is closed while throttled, the read urb is never resubmitted and the port will not receive any further data until the device is reconnected (or the driver is rebound). Clear the throttle flags and submit the urb if needed when opening the port.

Affected products

• 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 — fixed in 5.10.261, 5.15.212, 6.1.178, 6.12.96, 6.18.39, 6.6.145

How to fix

Upgrade to a fixed version: Linux kernel 5.10.261, 5.15.212, 6.1.178, 6.12.96. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/4f3f6f44db71e469933a7c36c5d57d937ba0a21b
• https://git.kernel.org/stable/c/61954033326fc7e637ed2aeeb4b52021e0ee4657
• https://git.kernel.org/stable/c/83a3dfc018943b05b6daf3a6f891833e1aabfa1f
• https://git.kernel.org/stable/c/8d50a910194f66566a5eb252b33283855c8d5203
• https://git.kernel.org/stable/c/92fa3e1a49848509ea3f7995751963fc65095998
• https://git.kernel.org/stable/c/abacd67e6f689c62d8a13e3da25f4272bc9ad4af
• https://git.kernel.org/stable/c/d5d2660caef78d4c996d34d123574c8e86f5b5ac
• https://git.kernel.org/stable/c/eab394781e9321c0c7e97a24fd092387cb262f40

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