CVE-2011-5101
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 · uneditedThe Rumor technology in McAfee SaaS Endpoint Protection before 5.2.4 allows remote attackers to relay e-mail messages via unspecified vectors, as demonstrated by relaying spam.
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 confidenceMcAfee SaaS Endpoint Protection versions before 5.2.4 contain a vulnerability in the Rumor technology component that allows remote attackers to use the protected system as an open mail relay, enabling them to relay spam and other email messages through the compromised infrastructure.
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<= 5.2.3= 5.2.0= 5.2.1= 5.2.2CVSS 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
- Authentication
- None
- Confidentiality
- None
- Integrity
- None
- Availability
- Partial
AV:N/AC:L/Au:N/C:N/I:N/A:P
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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Identify McAfee SaaS Endpoint Protection versionOpen the McAfee SaaS Endpoint Protection console or check the installed program version through Add/Remove Programs, the system tray icon, or the McAfee Agent. Record the exact version number displayed.Affected if The installed version is 5.2.3, 5.2.2, 5.2.1, 5.2.0, or any version lower than 5.2.4 (the installed version falls within <= 5.2.3).
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Confirm the Rumor component is presentCheck if the McAfee Rumor update component is installed or enabled on the system. This may be visible in the McAfee SaaS protection features list, the product console under update settings, or as a running service process related to Rumor.Affected if The Rumor component is installed and active on the system (the vulnerability exists only when this component is present).
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Verify the specific version against the CVE rangeCompare your confirmed installed version to the affected range: versions 5.2.0 through 5.2.3 (inclusive) are vulnerable. Version 5.2.4 and later are not affected.Affected if The installed version matches <= 5.2.3 (any version from 5.2.0 up to and including 5.2.3).
You are affected if McAfee SaaS Endpoint Protection version 5.2.3 or earlier is installed and the Rumor component is present on the system.
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 dataUpgrade McAfee SaaS Endpoint Protection to version 5.2.4 or later to remediate the email relay vulnerability in the Rumor component.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,800.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2011-5101 — 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-2011-5101 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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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.
- 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