Medium severity · published Dec 29, 2020
CVE-2020-5806
An attacker-controlled memory allocation size can be passed to the C++ new operator in the CServerManager::HandleBrowseLoadIconStreamRequest in messaging.dll
5.5
CVSS
4.8%
EPSS
No
On KEV
Description
An attacker-controlled memory allocation size can be passed to the C++ new operator in the CServerManager::HandleBrowseLoadIconStreamRequest in messaging.dll. This can be done by sending a specially crafted message to 127.0.0.1:7153. Observed in FactoryTalk Linx 6.11. All versions of FactoryTalk Linx are affected.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)4.8% · higher than 92% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FL
Factorytalk Linx · Rockwellautomation
through 6.11 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-5806
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-5806
Third Party Advisory
https://www.tenable.com/security/research/tra-2020-71
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