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HIGH · 7.5

CVE-2023-35920

A vulnerability has been identified in SIMATIC MV540 H (All versions < V3.3.4), SIMATIC MV540 S (All versions < V3.3.4), SIMATIC MV550 H (All versions < V3.3.4), SIMATIC MV550 S (All versions < V3.3.4...

Vulnerability Description

A vulnerability has been identified in SIMATIC MV540 H (All versions < V3.3.4), SIMATIC MV540 S (All versions < V3.3.4), SIMATIC MV550 H (All versions < V3.3.4), SIMATIC MV550 S (All versions < V3.3.4), SIMATIC MV560 U (All versions < V3.3.4), SIMATIC MV560 X (All versions < V3.3.4). Affected devices cannot properly process specially crafted IP packets sent to the devices. This could allow an unauthenticated remote attacker to cause a denial of service condition. The affected devices must be restarted manually.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
SiemensSimatic Mv540 H Firmware< 3.3.4
SiemensSimatic Mv540 H-
SiemensSimatic Mv540 S Firmware< 3.3.4
SiemensSimatic Mv540 S-
SiemensSimatic Mv550 H Firmware< 3.3.4
SiemensSimatic Mv550 H-
SiemensSimatic Mv550 S Firmware< 3.3.4
SiemensSimatic Mv550 S-
SiemensSimatic Mv560 U Firmware< 3.3.4
SiemensSimatic Mv560 U-
SiemensSimatic Mv560 X Firmware< 3.3.4
SiemensSimatic Mv560 X-

Related Weaknesses (CWE)

CWE-400

References

FAQ

What is CVE-2023-35920?

CVE-2023-35920 is a vulnerability with a CVSS score of 7.5 (HIGH). A vulnerability has been identified in SIMATIC MV540 H (All versions < V3.3.4), SIMATIC MV540 S (All versions < V3.3.4), SIMATIC MV550 H (All versions < V3.3.4), SIMATIC MV550 S (All versions < V3.3.4...

How severe is CVE-2023-35920?

CVE-2023-35920 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2023-35920?

Check the references section above for vendor advisories and patch information. Affected products include: Siemens Simatic Mv540 H Firmware, Siemens Simatic Mv540 H, Siemens Simatic Mv540 S Firmware, Siemens Simatic Mv540 S, Siemens Simatic Mv550 H Firmware.