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Race ConditionWeakness · CWE-362

CVE-2026-3006

HIGH · 7.0 CVSS v3.1 Published 2026-04-27
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
72/100
Remediation priority · Elevated
Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Successful exploitation of the race condition vulnerability could allow an attacker to trigger a kernel heap overflow, potentially leading to local privilege escalation and granting system-level access to the affected software.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · low confidence

A race condition vulnerability exists in the kernel that can be exploited to trigger a heap overflow, enabling a local attacker to escalate privileges to system level.

MitigationApply kernel security patches addressing the race condition and heap overflow; prioritize systems with untrusted local users.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
High
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Determine kernel version
    Run 'uname -r' or 'cat /proc/version' to obtain the running kernel version
    Affected if The kernel version matches the vulnerable version range for CVE-2026-3006 (compare against vendor security advisories)
  2. Verify presence of untrusted local users
    Review /etc/passwd for non-root user accounts and check for users without sudo privileges
    Affected if The system has local user accounts that are not fully trusted, providing potential attackers with the required local access
  3. Identify active kernel subsystems
    Run 'lsmod' to list loaded kernel modules; check 'cat /proc/sys/kernel/' for relevant tunable parameters
    Affected if Kernel modules or subsystems that contain the vulnerable race condition code path are loaded and active
  4. Check for exploitation artifacts
    Review system logs (dmesg, /var/log/syslog, audit logs) for heap corruption errors, kernel oops messages, or unexpected privilege escalation events
    Affected if Logs contain indicators of attempted or successful exploitation of the race condition or heap overflow

A system is affected if it runs a kernel version within the vulnerable range and has untrusted local user access to trigger the race condition.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply kernel security patches addressing the race condition and heap overflow; prioritize systems with untrusted local users.

Have this fixed Scoped from the published advisory
  • Consultation8.0 h
  • Implementation16.0 h
  • Testing24.0 h
  • Review / QA12.0 h
60.0 hours of engineering $10,240
Get help mitigating

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $16,384.

Scan for this in your stack

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-3006 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data