Riskcovery

CVE-2022-20685

Multiple Cisco Products Snort Modbus Denial of Service Vulnerability

State
Published
Severity
7.5 High
Published
Nov 15, 2024
Updated
Jan 27, 2025
Reserved
Nov 2, 2021

Read the record on cve.org

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. 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 has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

Scores

CVSSScoreVectorSource
3.17.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hcisco
3.17.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCISA-ADP

Weaknesses

  • CWE-190 Integer Overflow or Wraparound

Affected Products

ProductVersions
Cisco Cyber VisionCisco
  • 3.0.0Affected
  • 3.0.2Affected
  • 3.0.3Affected
  • 3.0.1Affected
  • 3.1.0Affected
  • 3.0.4Affected
  • 3.1.1Affected
  • 3.1.2Affected
  • 3.2.0Affected
  • 3.0.5Affected
  • 3.2.1Affected
  • 3.0.6Affected
  • 3.2.2Affected
  • 3.2.3Affected
  • 3.2.4Affected
  • 4.0.0Affected
  • 4.0.1Affected
Cisco Firepower Threat Defense SoftwareCisco
  • 6.2.3.14Affected
  • 6.4.0.1Affected
  • 6.2.3.7Affected
  • 6.2.3Affected
  • 6.4.0.2Affected
  • 6.2.3.9Affected
  • 6.2.3.1Affected
  • 6.2.3.2Affected
  • 6.4.0.5Affected
  • 6.2.3.10Affected
  • 6.4.0Affected
  • 6.4.0.3Affected
  • 6.2.3.6Affected
  • 6.4.0.4Affected
  • 6.2.3.15Affected
  • 6.2.3.5Affected
  • 6.2.3.4Affected
  • 6.2.3.3Affected
  • 6.2.3.8Affected
  • 6.4.0.6Affected
  • 6.2.3.11Affected
  • 6.2.3.12Affected
  • 6.2.3.13Affected
  • 6.4.0.7Affected
  • 6.4.0.8Affected
  • and 19 more versions
Cisco UTD SNORT IPS Engine SoftwareCisco
  • 3.17.1SAffected
  • 16.12.3Affected
  • Fuji-16.9.5Affected
  • 16.12.4Affected
  • 17.3.1aAffected
  • 16.6.6Affected
  • 16.12.2Affected
  • Fuji-16.9.6Affected
  • 3.17.0SAffected
  • Fuji-16.9.3Affected
  • Denali-16.3.7Affected
  • Fuji-16.9.2Affected
  • Fuji-16.9.4Affected
  • Everest-16.6.4Affected
  • Everest-16.6.3Affected
  • 16.6.5Affected
  • Denali-16.3.5Affected
  • 17.2.1rAffected
  • 17.1.1Affected
  • Everest-16.6.2Affected
  • 16.6.7aAffected
  • Denali-16.3.4Affected
  • 16.6.1Affected
  • Denali-16.3.9Affected
  • Denali-16.3.3Affected
  • and 18 more versions

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.