CVE-2021-0133
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 · uneditedKey exchange without entity authentication in the Intel(R) Security Library before version 3.3 may allow an authenticated user to potentially enable escalation of privilege via network access.
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 · moderate confidenceIntel Security Library before version 3.3 contains a key exchange vulnerability where entity authentication is not performed during the key exchange process. This allows an authenticated user to potentially escalate privileges via network access by manipulating the unauthenticated key exchange.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data< 3.3CVSS 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
- Network
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
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 checksWork through these to decide whether this CVE applies to you.
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Verify Intel Secl DC installationCheck if Intel Security Library / Intel Secl DC is installed on the system. Look for related services, binaries, or packages named 'intel-secl', 'intel security library', or 'secl' using package managers, service listings, or directory searches.Affected if Intel Secl DC is found on the system
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Determine Intel Security Library versionLocate and read the Intel Security Library version information. This may be found via: (1) package manager query (dpkg/rpm -q), (2) binary version info (if versioned binaries exist), (3) configuration or manifest files, or (4) service/daemon version flags. Compare the installed version against the affected range (all versions before 3.3).Affected if The installed version of Intel Security Library is lower than 3.3
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Confirm key exchange feature is in useCheck if the key exchange functionality is enabled or configured. Review relevant configuration files, service settings, or feature flags related to key exchange, entity authentication, or cryptographic key handling within the Intel Secl DC deployment.Affected if Key exchange or cryptographic key handling features are enabled or configured in the Intel Secl DC deployment
The environment is affected if Intel Secl DC with Intel Security Library version below 3.3 is installed and the key exchange feature is in use, as the missing entity authentication allows privilege escalation via network access manipulation.
Generated from the published advisory. Verify against your own configuration.
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 data3.3
Upgrade Intel Security Library to version 3.3 or later to implement proper entity authentication in key exchange mechanisms.
- Consultation4.0 h
- Implementation3.0 h
- Testing8.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,928.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-0133 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2021-0133 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- 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
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