CVE-2011-3489
CVE-2011-3489 is a medium-severity vulnerability in Rockwellautomation Rslogix with a CVSS 2.0 base score of 5.0. 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: Medium (CVSS 2.0 base score 5.0)
- EPSS exploit prediction: 9% (95th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-119
- Affected product: Rockwellautomation Rslogix
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2011-3489?
- 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.
- How severe is CVE-2011-3489?
- CVE-2011-3489 has a CVSS 2.0 base score of 5.0, rated medium severity.
- Is CVE-2011-3489 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 9% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2011-3489?
- CVE-2011-3489 affects Rockwellautomation Rslogix. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2011-3489?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2011-3489 published?
- CVE-2011-3489 was published on 2011-09-16 and last updated on 2026-06-16.
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
Affected products (1)
- cpe:2.3:a:rockwellautomation:rslogix:*:*:*:*:*:*:*:*
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