How severe is CVE-2011-2530?

CVE-2011-2530 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2011-2530 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-2530?

CVE-2011-2530 primarily affects Rockwellautomation Rslinx. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-2530?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2011-2530 published?

CVE-2011-2530 was published on 2011-06-22 and last updated on 2026-06-16.

CVE-2011-2530

CVE-2011-2530 is a critical-severity vulnerability in Rockwellautomation Rslinx with a CVSS 2.0 base score of 9.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 8% (94th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Rockwellautomation Rslinx
Published: 2011-06-22
Last modified: 2026-06-16

Description

Buffer 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.

Frequently asked questions

What is CVE-2011-2530?: Buffer 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.
How severe is CVE-2011-2530?: CVE-2011-2530 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2011-2530 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-2530?: CVE-2011-2530 primarily affects Rockwellautomation Rslinx. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-2530?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2011-2530 published?: CVE-2011-2530 was published on 2011-06-22 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:rockwellautomation:rslinx:*:*:*:*:classic:*:*:*
cpe:2.3:a:rockwellautomation:eds_hardware_installation_tool:*:*:*:*:*:*:*:*

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