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CVE-2022-25622

HIGHCVSS 7.5/10EPSS 0.82%

Last modified

CVE-2022-25622 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. The PROFINET (PNIO) stack, when integrated with the Interniche IP stack, improperly handles internal resources for TCP segments where the minimum TCP-Header length is less than defined. This could allow an attacker to create a denial of service condition for TCP services on affected devices by sending specially crafted TCP segments.. EPSS estimates a 0.82% chance of exploitation in the next 30 days.

Description

The PROFINET (PNIO) stack, when integrated with the Interniche IP stack, improperly handles internal resources for TCP segments where the minimum TCP-Header length is less than defined. This could allow an attacker to create a denial of service condition for TCP services on affected devices by sending specially crafted TCP segments.

Metrics

CVSS 3.1
7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
0.82%

52.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
SiemensSimatic Cfu Diq FirmwareAll versions
SiemensSimatic Cfu Pa FirmwareAll versions
SiemensSimatic S7-300 Cpu FirmwareAll versions
SiemensSimatic S7-400h V6 FirmwareAll versions
SiemensSimatic S7-400 Pn\/Dp V7 FirmwareAll versions
SiemensSimatic S7-410 V8 FirmwareAll versions
SiemensSimatic S7-410 V10 FirmwareAll versions
SiemensSimatic S7-1500 Cpu Firmware< 2.0.0
SiemensSimatic Tdc Cp51m1 FirmwareAll versions
SiemensSimatic Tdc Cpu555 FirmwareAll versions
SiemensSimatic Winac Rtx FirmwareAll versions
SiemensSimit Simulation PlatformAll versions

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2022-25622?
The PROFINET (PNIO) stack, when integrated with the Interniche IP stack, improperly handles internal resources for TCP segments where the minimum TCP-Header length is less than defined. This could allow an attacker to create a denial of service condition for TCP services on affected devices by sending specially crafted TCP segments.
How severe is CVE-2022-25622?
CVE-2022-25622 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.82% probability of exploitation in the next 30 days.
How do I fix CVE-2022-25622?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-25622?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST