SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

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.

HIGH 7.5EPSS 1.40%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.40%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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 3.1
7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
1.40% probability · 71th percentile
CISA KEV
Not listed
Weakness
CWE-400
Affected
siemens/cp1604 firmware · siemens/cp1616 firmware · siemens/dk standard ethernet controller firmware · siemens/ek-ertec 200 firmware · siemens/ek-ertec 200p firmware · siemens/scalance x-200irt firmware · siemens/simatic et 200m firmware · siemens/simatic et 200s firmware · siemens/simatic et 200ecopn firmware · siemens/simatic pn\/pn coupler 6es7158-3ad01-0xa0 firmware · siemens/simatic s7-300 cpu firmware · siemens/simatic s7-300 cpu 312 ifm firmware · siemens/simatic s7-300 cpu 313 firmware · siemens/simatic s7-300 cpu 314 firmware · siemens/simatic s7-300 cpu 314 ifm firmware · siemens/simatic s7-300 cpu 315 firmware · siemens/simatic s7-300 cpu 315-2 dp firmware · siemens/simatic s7-300 cpu 316-2 dp firmware · siemens/simatic s7-300 cpu 318-2 firmware · siemens/simatic s7-400 v6 firmware · +20 more
Source
productcert@siemens.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.