VULNERABILITY INTELLIGENCE
CVE-2011-3489
CVSS score5 MEDIUM
EPSS probability8.75%
CISA KEVNot currently listed
Published2011-09-16
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:N/I:N/A:P
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.
Weakness classification
- CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer