VulnerabilityModified
CVE-2020-5802
An attacker-controlled memory allocation size can be passed to the C++ new operator in RnaDaSvr.dll by sending a specially crafted ConfigureItems message to TCP port 4241.
HIGH 7.5EPSS 38.8%
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 38.8%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
Description
An attacker-controlled memory allocation size can be passed to the C++ new operator in RnaDaSvr.dll by sending a specially crafted ConfigureItems message to TCP port 4241. This will cause an unhandled exception, resulting in termination of RSLinxNG.exe. Observed in FactoryTalk 6.11. All versions of FactoryTalk Linx are affected.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 38.83% probability · 99th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-770
- Affected
- rockwellautomation/factorytalk linx
- Source
- vulnreport@tenable.com
References
- https://www.tenable.com/security/research/tra-2020-71Third Party Advisory
- https://www.tenable.com/security/research/tra-2020-71Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.