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VulnerabilityPublished

CVE-2026-98612: Linux kernel · net: usb: catc: bound the RX packet length in catc_rx_done()

Affects Linux kernelSource CVE Database V5

0

Not known to be exploited · fixed in dd9c6f8f05170223edec2dac476606cd40d9acb7 : patch Linux kernel soon.

Data as of 26 Oct 2026, 13:47 UTC

Severity
High

Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD

EPSS
0.1% chance of exploitation in 30 days – higher than 8% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in dd9c6f8f05170223edec2dac476606cd40d9acb7, 3942557938f846e7481f6ccb2b41ccbdee61baa1, 801e21cf7dd6bcee31db907625d5045f21c9c1d9 +5

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 18 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < dd9c6f8f05170223edec2dac476606cd40d9acb7
Fixed in
  • dd9c6f8f05170223edec2dac476606cd40d9acb7
LinuxLinuxAffected
  • ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 3942557938f846e7481f6ccb2b41ccbdee61baa1
Fixed in
  • 3942557938f846e7481f6ccb2b41ccbdee61baa1
LinuxLinuxAffected
  • ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 801e21cf7dd6bcee31db907625d5045f21c9c1d9
Fixed in
  • 801e21cf7dd6bcee31db907625d5045f21c9c1d9
LinuxLinuxAffected
  • ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 21e206dd88b3de6e36bb607dec3797c59bc3007b
Fixed in
  • 21e206dd88b3de6e36bb607dec3797c59bc3007b
LinuxLinuxAffected
  • ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 9d565b6b72fe3f41fd43636e143072848105189f
Fixed in
  • 9d565b6b72fe3f41fd43636e143072848105189f
LinuxLinuxAffected
  • ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 9d4be026bdff2c1da7b6c7e01c0a47f2df409e97
Fixed in
  • 9d4be026bdff2c1da7b6c7e01c0a47f2df409e97

AI-suggested

This vulnerability has been fixed in the Linux kernel. Users should update to a kernel version that includes the fix identified by the referenced commits. No additional mitigation is required once the kernel is updated.

Description

A vulnerability in the Linux kernel's USB CATC driver (catc_rx_done function) allowed crafted packet headers to cause out-of-bounds reads and processing of runt packets. This was due to improper bounds checking of RX packet lengths, which could lead to reading uninitialized memory. The issue has been fixed by properly validating packet lengths and rejecting malformed packets.

References

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