Critical severity · published Nov 20, 2019
CVE-2019-18858
CODESYS 3 web server before 3.5.15.20, as distributed with CODESYS Control runtime systems, has a Buffer Overflow
9.8
CVSS
1.9%
EPSS
No
On KEV
Description
CODESYS 3 web server before 3.5.15.20, as distributed with CODESYS Control runtime systems, has a Buffer Overflow.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.9% · higher than 80% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CF
Control For Beaglebone · Codesys
before 3.5.15.20 · source: NVD
CF
Control For Empc-a/imx6 · Codesys
before 3.5.15.20 · source: NVD
CF
Control For Iot2000 · Codesys
before 3.5.15.20 · source: NVD
CF
Control For Linux · Codesys
before 3.5.15.20 · source: NVD
CF
Control For Pfc100 · Codesys
before 3.5.15.20 · source: NVD
CF
Control For Pfc200 · Codesys
before 3.5.15.20 · source: NVD
CF
Control For Plcnext · Codesys
before 3.5.15.20 · source: NVD
CF
Control For Raspberry PI · Codesys
before 3.5.15.20 · source: NVD
CR
Control Rte · Codesys
before 3.5.15.20 · source: NVD
CR
Control Runtime System Toolkit · Codesys
before 3.5.15.20 · source: NVD
CW
Control Win · Codesys
before 3.5.15.20 · source: NVD
ET
Embedded Target Visu Toolkit · Codesys
before 3.5.15.20 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-18858
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-18858
Vendor Advisory
https://customers.codesys.com/fileadmin/data/customers/security/2019/Advisory2019-10_CDS-68341.pdf
Exploit
https://www.tenable.com/security/research/tra-2019-48
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