High severity · published Oct 10, 2019
CVE-2019-10923
An attacker with network access to an affected product may cause a denial of service condition by breaking the real-time synchronization (IRT) of the affected installation
7.5
CVSS
1.4%
EPSS
No
On KEV
Description
An attacker with network access to an affected product may cause a denial of service condition by breaking the real-time synchronization (IRT) of the affected installation.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 72% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CF
Cp1604 Firmware · Siemens
before 2.8 · source: NVD
CF
Cp1616 Firmware · Siemens
before 2.8 · source: NVD
DS
DK Standard Ethernet Controller Firmware · Siemens
before 4.1.1; 4.1.1; 4.1.1 · source: NVD
E2
Ek-ertec 200 Firmware · Siemens
before 4.5.0; 4.5.0 · source: NVD
E2
Ek-ertec 200p Firmware · Siemens
before 4.5.0 · source: NVD
SX
Scalance X-200irt Firmware · Siemens
before 5.2.1 · source: NVD
SE
Simatic ET 200ecopn Firmware · Siemens
All versions, or not specified · source: NVD
SE
Simatic ET 200m Firmware · Siemens
All versions, or not specified · source: NVD
SE
Simatic ET 200s Firmware · Siemens
All versions, or not specified · source: NVD
SP
Simatic Pn/pn Coupler 6es7158-3ad01-0xa0 Firmware · Siemens
All versions, or not specified · source: NVD
SS
Simatic S7-300 Cpu 312 Ifm Firmware · Siemens
before 3.3.17 · source: NVD
SS
Simatic S7-300 Cpu 313 Firmware · Siemens
before 3.3.17 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-10923
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-10923
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/html/ssa-349422.html
Vendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-349422.pdf
More from Cp1604 Firmware
7.5
CVE-2019-6568
The webserver of the affected devices contains a vulnerability that may lead to a denial of service condition