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cvelistSiemensCVELIST:CVE-2023-35920
HistoryJul 11, 2023 - 9:07 a.m.

CVE-2023-35920

2023-07-1109:07:08
CWE-400
siemens
www.cve.org
1
cve-2023-35920
denial of service
simatic mv540
simatic mv550
simatic mv560
unauthenticated remote attacker

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C

7.6 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

35.1%

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.

CNA Affected

[
  {
    "vendor": "Siemens",
    "product": "SIMATIC MV540 H",
    "versions": [
      {
        "version": "All versions < V3.3.4",
        "status": "affected"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC MV540 S",
    "versions": [
      {
        "version": "All versions < V3.3.4",
        "status": "affected"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC MV550 H",
    "versions": [
      {
        "version": "All versions < V3.3.4",
        "status": "affected"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC MV550 S",
    "versions": [
      {
        "version": "All versions < V3.3.4",
        "status": "affected"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC MV560 U",
    "versions": [
      {
        "version": "All versions < V3.3.4",
        "status": "affected"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC MV560 X",
    "versions": [
      {
        "version": "All versions < V3.3.4",
        "status": "affected"
      }
    ],
    "defaultStatus": "unknown"
  }
]

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C

7.6 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

35.1%

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