What’s Vulnerable › Vulnerabilities

CVE-2011-3489

• Severity: medium (CVSS 5.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 8.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2011-09-16 · updated 2026-06-16
• Weakness: CWE-119

Description

RnaUtility.dll in RsvcHost.exe 2.30.0.23 in Rockwell RSLogix 19 and earlier allows remote attackers to cause a denial of service (crash) via a crafted rna packet with a long string to TCP port 4446 that triggers (1) "a memset zero overflow" or (2) an out-of-bounds read, related to improper handling of a 32-bit size field.

Affected products

• Rockwell Automation RSLogix: through 19

References

• http://aluigi.altervista.org/adv/rslogix_1-adv.txt
• http://securityreason.com/securityalert/8383
• http://www.securityfocus.com/bid/49608
• https://exchange.xforce.ibmcloud.com/vulnerabilities/69808
• http://aluigi.altervista.org/adv/rslogix_1-adv.txt
• http://securityreason.com/securityalert/8383
• http://www.securityfocus.com/bid/49608
• https://exchange.xforce.ibmcloud.com/vulnerabilities/69808

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