CVE-2019-13946
high-risk
Published 2020-02-11
Profinet-IO (PNIO) stack versions prior V06.00 do not properly limit internal resource allocation when multiple legitimate diagnostic package requests are sent to the DCE-RPC interface. This could lead to a denial of service condition due to lack of memory for devices that include a vulnerable version of the stack. The security vulnerability could be exploited by an attacker with network access to an affected device. Successful exploitation requires no system privileges and no user interaction. An attacker could use the vulnerability to compromise the availability of the device.
Do I need to act?
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0.55% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10
High
NETWORK
/ LOW complexity
Affected Products (20)
Simatic Et200M Im153-4 Pn Io Hf Firmware
Simatic Et200M Im153-4 Pn Io St Firmware
Dk Standard Ethernet Controller
Profinet Driver
Simatic Ipc Support
Ek-Ertec 200 Firmware
Ek-Ertec 200P Firmware
Ruggedcom Rm1224 Firmware
Scalance M-800 Firmware
Scalance W700 Ieee 802.11N Firmware
Scalance Xc-200 Firmware
Scalance Xf-200 Firmware
Scalance Xp-200 Firmware
Scalance Xb-200 Firmware
Scalance X-200Irt Firmware
Scalance Xr-300Wg Firmware
Scalance X-300 Firmware
Scalance Xf-200Ba Firmware
Scalance X-400 Firmware
Affected Vendors
References (4)
54
/ 100
high-risk
Severity
26/34 · High
Exploitability
2/34 · Minimal
Exposure
26/34 · High