CVE-2011-2530
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 · uneditedBuffer overflow in RSEds.dll in RSHWare.exe in the EDS Hardware Installation Tool 1.0.5.1 and earlier in Rockwell Automation RSLinx Classic before 2.58 allows user-assisted remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a malformed .eds file.
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 · high confidenceBuffer overflow vulnerability in RSEds.dll within RSHWare.exe (EDS Hardware Installation Tool 1.0.5.1 and earlier) allows attackers to cause denial of service or potentially execute arbitrary code via malformed .eds files. Affects RSLinx Classic versions prior to 2.58.
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< 2.58<= 1.0.5.1CVSS 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
- M
- Authentication
- None
- Confidentiality
- Complete
- Integrity
- Complete
- Availability
- Complete
AV:N/AC:M/Au:N/C:C/I:C/A:C
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 installed RSLinx Classic versionLocate RSLinx Classic installation and retrieve its version number (typically found in the application properties, About dialog, or installation directory metadata)Affected if The installed version is earlier than 2.58
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Identify installed EDS Hardware Installation Tool versionLocate the EDS Hardware Installation Tool (RSHWare.exe) installation and retrieve its version numberAffected if The installed version is 1.0.5.1 or earlier
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Verify presence of vulnerable RSEds.dll componentLocate the RSEds.dll file within the RSLinx or EDS tool installation directory and confirm it existsAffected if The RSEds.dll component is present in an installation meeting the version criteria above
A system is affected if RSLinx Classic version is earlier than 2.58, or if EDS Hardware Installation Tool version is 1.0.5.1 or earlier, with the vulnerable RSEds.dll component present.
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.
dbcve · scoped2.58
Upgrade RSLinx Classic to version 2.58 or later to patch the vulnerable RSEds.dll component; avoid opening untrusted .eds files from unknown sources until patching is complete.
RSLinx Classic 2.58 or later; EDS Hardware Installation Tool version greater than 1.0.5.1
- 1. Obtain the latest version of RSLinx Classic (version 2.58 or later) from the Rockwell Automation download site or support portal
- 2. Obtain the latest version of EDS Hardware Installation Tool (version greater than 1.0.5.1) from the Rockwell Automation download site or support portal
- 3. Ensure all RSLinx Classic services are stopped before upgrading
- 4. Install the updated RSLinx Classic version 2.58 or later
- 5. Install the updated EDS Hardware Installation Tool version greater than 1.0.5.1
- 6. Restart any RSLinx Classic services
- 7. Verify the installation was successful by checking the About section in RSLinx Classic
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation3.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2011-2530 — 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-2011-2530 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
- No spam, self-promotion, credentials, or personal data