CVE-2025-68289

Kernel memory leak via failed endpoint queue

Published Dec 16, 2025 · Updated Dec 16, 2025

Memory leak in the Linux kernel USB Ethernet Emulation Model function allows attackers to consume kernel memory through its command path. In eem_unwrap, a failed usb_ep_queue call leaves a cloned socket buffer, endpoint request, request buffer, and command response buffer allocated instead of releasing them. Exposure requires an enabled USB gadget using the EEM function and an endpoint-queue failure; the public record does not establish attacker control of that failure or a resulting service interruption.

CVSS severityUnavailable
Unscored
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory leak in the Linux kernel USB Ethernet Emulation Model function allows attackers to consume kernel memory through its command path. In eem_unwrap, a failed usb_ep_queue call leaves a cloned socket buffer, endpoint request, request buffer, and command response buffer allocated instead of releasing them. Exposure requires an enabled USB gadget using the EEM function and an endpoint-queue failure; the public record does not establish attacker control of that failure or a resulting service interruption.

The record

CVE
CVE-2025-68289
Published
Dec 16, 2025
Updated
Dec 16, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
physical
Privileges
Unavailable

Timeline

How it unfolded

  1. Dec 16, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 16, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3680a6ff9a9ccd3c664663da04bef2534397d591
  2. Affected versionversion=3b545788505b2e2883aff13bdddeacaf88942a4f <a9985a88b2fc29fbe1657fe8518908e261d6889c
  3. Affected versionversion=4249d6fbc10fd997abdf8a1ea49c0389a0edf706 <0ac07e476944a5e4c2b8b087dd167dec248c1bdf
  4. Affected versionversion=4249d6fbc10fd997abdf8a1ea49c0389a0edf706 <0dea2e0069a7e9aa034696f8065945b7be6dd6b7
  5. Affected versionversion=4249d6fbc10fd997abdf8a1ea49c0389a0edf706 <41434488ca714ab15cb2a4d0378418d1be8052d2
  6. Affected versionversion=4249d6fbc10fd997abdf8a1ea49c0389a0edf706 <5a1628283cd9dccf1e44acfb74e77504f4dc7472
  7. Affected versionversion=4249d6fbc10fd997abdf8a1ea49c0389a0edf706 <e4f5ce990818d37930cd9fb0be29eee0553c59d9
  8. Affected versionversion=4249d6fbc10fd997abdf8a1ea49c0389a0edf706 <e72c963177c708a167a7e17ed6c76320815157cf
  9. Affected versionversion=5.14
  10. Affected versionversion=77d7f071883cf2921a7547f82e41f15f7f860e35
  11. Affected versionversion=8bdef7f21cb6e53c0ce3e1cbcb05975aa0dd0fe9
  12. Affected versionversion=8e275d3d5915a8f7db3786e3f84534bb48245f4c
  13. Affected versionversion=a55093941e38113dd6f5f5d5d2705fec3018f332
  14. Affected versionversion=d55a236f1bab102e353ea5abb7b7b6ff7e847294
  15. Affected versionversion=d654be97e1b679616e3337b871a9ec8f31a88841

What conditions does exploitation require?

Attack vectorphysical
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=3680a6ff9a9ccd3c664663da04bef2534397d591; version=3b545788505b2e2883aff13bdddeacaf88942a4f <a9985a88b2fc29fbe1657fe8518908e261d6889c; version=4249d6fbc10fd997abdf8a1ea49c0389a0edf706 <0ac07e476944a5e4c2b8b087dd167dec248c1bdf; version=4249d6fbc10fd997abdf8a1ea49c0389a0edf706 <0dea2e0069a7e9aa034696f8065945b7be6dd6b7; version=4249d6fbc10fd997abdf8a1ea49c0389a0edf706 <41434488ca714ab15cb2a4d0378418d1be8052d2; version=4249d6fbc10fd997abdf8a1ea49c0389a0edf706 <5a1628283cd9dccf1e44acfb74e77504f4dc7472; version=4249d6fbc10fd997abdf8a1ea49c0389a0edf706 <e4f5ce990818d37930cd9fb0be29eee0553c59d9; version=4249d6fbc10fd997abdf8a1ea49c0389a0edf706 <e72c963177c708a167a7e17ed6c76320815157cf; version=5.14; version=77d7f071883cf2921a7547f82e41f15f7f860e35; version=8bdef7f21cb6e53c0ce3e1cbcb05975aa0dd0fe9; version=8e275d3d5915a8f7db3786e3f84534bb48245f4c; version=a55093941e38113dd6f5f5d5d2705fec3018f332; version=d55a236f1bab102e353ea5abb7b7b6ff7e847294; version=d654be97e1b679616e3337b871a9ec8f31a88841

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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