Is CVE-2011-2530 in the CISA KEV catalog?

No. CVE-2011-2530 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2011-2530?

CVE-2011-2530 has a CVSS v2 base score of 9.3 (HIGH).

What is the EPSS score for CVE-2011-2530?

CVE-2011-2530 has an EPSS score of 7.59% (94th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2011-2530?

Upgrade rslinx to 2.58 or later.

CVE & CISA-KEV Catalog

CVE-2011-2530

HIGHEPSS 94th pctl

9.3

CVSS v2

NVD

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.

CWE-119Buffer Overflow

How to fix

Remediation Available

rslinxNVD

Affected:< 2.58Fixed in:2.58CVE-2011-2530derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

7.59%probability of exploitation in 30 days

94thpercentile

High risk: more likely to be exploited than 94% of all known CVEs.

References

Third-Party Advisory1

securityfocus.com

Government Resource2

Other references1

rockwellautomation.custhelp.com

Related Vulnerabilities

Other CWE-119 (Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-4966	Critical	9.4	100%	KEV + Ransom	Fix
CVE-2017-11882	High	7.8	100%	KEV + Ransom	-
CVE-2020-0796	Critical	10.0	100%	KEV + Ransom	-
CVE-2008-4250	Critical	9.8	99%	KEV	-
CVE-2017-15944	Critical	9.8	98%	KEV	Fix
CVE-2015-0014	High	10.0	97%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.