Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2022-20685

Severity CVSS v4.0:
Pending analysis
Type:
CWE-190 Integer Overflow or Wraparound
Publication date:
15/11/2024
Last modified:
24/06/2025

Description

A vulnerability in the Modbus preprocessor of the Snort detection engine could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.<br /> This vulnerability is due to an integer overflow while processing Modbus traffic. An attacker could exploit this vulnerability by sending crafted Modbus traffic through an affected device. A successful exploit could allow the attacker to cause the Snort process to hang, causing traffic inspection to stop.Cisco&amp;nbsp;has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
7.50
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:cisco:cyber_vision:3.0.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:cyber_vision:3.0.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:cyber_vision:3.0.2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:cyber_vision:3.0.3:*:*:*:*:*:*:*
cpe:2.3:a:cisco:cyber_vision:3.0.4:*:*:*:*:*:*:*
cpe:2.3:a:cisco:cyber_vision:3.0.5:*:*:*:*:*:*:*
cpe:2.3:a:cisco:cyber_vision:3.0.6:*:*:*:*:*:*:*
cpe:2.3:a:cisco:cyber_vision:3.1.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:cyber_vision:3.1.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:cyber_vision:3.1.2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:cyber_vision:3.2.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:cyber_vision:3.2.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:cyber_vision:3.2.2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:cyber_vision:3.2.3:*:*:*:*:*:*:*
cpe:2.3:a:cisco:cyber_vision:3.2.4:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools