HIGH
Multiple Cisco Products Snort Modbus Denial of Service Vulnerability
Published Nov 15, 2024
7.5
HIGHCVSS 3.1
EPSS 1.44%
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.
Affected products
-
- Version 3.0.0StatusaffectedConstraints-
- Version 3.0.1StatusaffectedConstraints-
- Version 3.0.2StatusaffectedConstraints-
- Version 3.0.3StatusaffectedConstraints-
- Version 3.0.4StatusaffectedConstraints-
- Version 3.0.5StatusaffectedConstraints-
- Version 3.0.6StatusaffectedConstraints-
- Version 3.1.0StatusaffectedConstraints-
- Version 3.1.1StatusaffectedConstraints-
- Version 3.1.2StatusaffectedConstraints-
- Version 3.2.0StatusaffectedConstraints-
- Version 3.2.1StatusaffectedConstraints-
- Version 3.2.2StatusaffectedConstraints-
- Version 3.2.3StatusaffectedConstraints-
- Version 3.2.4StatusaffectedConstraints-
- Version 4.0.0StatusaffectedConstraints-
- Version 4.0.1StatusaffectedConstraints-
- Version
-
- Version 6.2.3StatusaffectedConstraints-
- Version 6.2.3.1StatusaffectedConstraints-
- Version 6.2.3.10StatusaffectedConstraints-
- Version 6.2.3.11StatusaffectedConstraints-
- Version 6.2.3.12StatusaffectedConstraints-
- Version 6.2.3.13StatusaffectedConstraints-
- Version 6.2.3.14StatusaffectedConstraints-
- Version 6.2.3.15StatusaffectedConstraints-
- Version 6.2.3.16StatusaffectedConstraints-
- Version 6.2.3.17StatusaffectedConstraints-
- Version 6.2.3.18StatusaffectedConstraints-
- Version 6.2.3.2StatusaffectedConstraints-
- Version 6.2.3.3StatusaffectedConstraints-
- Version 6.2.3.4StatusaffectedConstraints-
- Version 6.2.3.5StatusaffectedConstraints-
- Version 6.2.3.6StatusaffectedConstraints-
- Version 6.2.3.7StatusaffectedConstraints-
- Version 6.2.3.8StatusaffectedConstraints-
- Version 6.2.3.9StatusaffectedConstraints-
- Version 6.4.0StatusaffectedConstraints-
- Version 6.4.0.1StatusaffectedConstraints-
- Version 6.4.0.10StatusaffectedConstraints-
- Version 6.4.0.11StatusaffectedConstraints-
- Version 6.4.0.12StatusaffectedConstraints-
- Version 6.4.0.2StatusaffectedConstraints-
- Version 6.4.0.3StatusaffectedConstraints-
- Version 6.4.0.4StatusaffectedConstraints-
- Version 6.4.0.5StatusaffectedConstraints-
- Version 6.4.0.6StatusaffectedConstraints-
- Version 6.4.0.7StatusaffectedConstraints-
- Version 6.4.0.8StatusaffectedConstraints-
- Version 6.4.0.9StatusaffectedConstraints-
- Version 6.6.0StatusaffectedConstraints-
- Version 6.6.0.1StatusaffectedConstraints-
- Version 6.6.1StatusaffectedConstraints-
- Version 6.6.3StatusaffectedConstraints-
- Version 6.6.4StatusaffectedConstraints-
- Version 6.6.5StatusaffectedConstraints-
- Version 6.7.0StatusaffectedConstraints-
- Version 6.7.0.1StatusaffectedConstraints-
- Version 6.7.0.2StatusaffectedConstraints-
- Version 6.7.0.3StatusaffectedConstraints-
- Version 7.0.0StatusaffectedConstraints-
- Version 7.0.0.1StatusaffectedConstraints-
- Version
-
- Version 16.12.1aStatusaffectedConstraints-
- Version 16.12.2StatusaffectedConstraints-
- Version 16.12.3StatusaffectedConstraints-
- Version 16.12.4StatusaffectedConstraints-
- Version 16.12.5StatusaffectedConstraints-
- Version 16.12.6StatusaffectedConstraints-
- Version 16.6.1StatusaffectedConstraints-
- Version 16.6.10StatusaffectedConstraints-
- Version 16.6.5StatusaffectedConstraints-
- Version 16.6.6StatusaffectedConstraints-
- Version 16.6.7aStatusaffectedConstraints-
- Version 16.6.9StatusaffectedConstraints-
- Version 17.1.1StatusaffectedConstraints-
- Version 17.2.1rStatusaffectedConstraints-
- Version 17.3.1aStatusaffectedConstraints-
- Version 17.3.2StatusaffectedConstraints-
- Version 17.3.3StatusaffectedConstraints-
- Version 17.3.4StatusaffectedConstraints-
- Version 17.3.4aStatusaffectedConstraints-
- Version 17.4.1aStatusaffectedConstraints-
- Version 17.4.1bStatusaffectedConstraints-
- Version 17.4.2StatusaffectedConstraints-
- Version 17.5.1StatusaffectedConstraints-
- Version 17.5.1aStatusaffectedConstraints-
- Version 17.6.1aStatusaffectedConstraints-
- Version 17.7.1aStatusaffectedConstraints-
- Version 3.17.0SStatusaffectedConstraints-
- Version 3.17.1SStatusaffectedConstraints-
- Version Denali-16.3.3StatusaffectedConstraints-
- Version Denali-16.3.4StatusaffectedConstraints-
- Version Denali-16.3.5StatusaffectedConstraints-
- Version Denali-16.3.7StatusaffectedConstraints-
- Version Denali-16.3.9StatusaffectedConstraints-
- Version Everest-16.6.2StatusaffectedConstraints-
- Version Everest-16.6.3StatusaffectedConstraints-
- Version Everest-16.6.4StatusaffectedConstraints-
- Version Fuji-16.9.2StatusaffectedConstraints-
- Version Fuji-16.9.3StatusaffectedConstraints-
- Version Fuji-16.9.4StatusaffectedConstraints-
- Version Fuji-16.9.5StatusaffectedConstraints-
- Version Fuji-16.9.6StatusaffectedConstraints-
- Version Fuji-16.9.7StatusaffectedConstraints-
- Version Fuji-16.9.8StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Cisco | Cisco Cyber Vision | n/a |
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Cisco | Cisco Firepower Threat Defense Software | n/a |
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Cisco | Cisco UTD SNORT IPS Engine Software | n/a |
|
Configuration 1
OR
- 3.0.0
- 3.0.1
- 3.0.2
- 3.0.3
- 3.0.4
- 3.0.5
- 3.0.6
- 3.1.0
- 3.1.1
- 3.1.2
- 3.2.0
- 3.2.1
- 3.2.2
- 3.2.3
- 3.2.4
- 4.0.0
- 4.0.1
Configuration 2
OR
- 6.2.3
- 6.2.3.1
- 6.2.3.2
- 6.2.3.3
- 6.2.3.4
- 6.2.3.5
- 6.2.3.6
- 6.2.3.7
- 6.2.3.8
- 6.2.3.9
- 6.2.3.10
- 6.2.3.11
- 6.2.3.12
- 6.2.3.13
- 6.2.3.14
- 6.2.3.15
- 6.2.3.16
- 6.2.3.17
- 6.2.3.18
- 6.4.0
- 6.4.0.1
- 6.4.0.2
- 6.4.0.3
- 6.4.0.4
- 6.4.0.5
- 6.4.0.6
- 6.4.0.7
- 6.4.0.8
- 6.4.0.9
- 6.4.0.10
- 6.4.0.11
- 6.4.0.12
- 6.6.0
- 6.6.0.1
- 6.6.1
- 6.6.3
- 6.6.4
- 6.6.5
- 6.7.0
- 6.7.0.1
- 6.7.0.2
- 6.7.0.3
- 7.0.0
- 7.0.0.1
Configuration 3
OR
- 3.17.0s
- 3.17.1s
- 16.6.1
- 16.6.5
- 16.6.6
- 16.6.7a
- 16.6.9
- 16.6.10
- 16.12.1a
- 16.12.2
- 16.12.3
- 16.12.4
- 16.12.5
- 16.12.6
- 17.1.1
- 17.2.1r
- 17.3.1a
- 17.3.2
- 17.3.3
- 17.3.4
- 17.3.4a
- 17.4.1a
- 17.4.1b
- 17.4.2
- 17.5.1
- 17.5.1a
- 17.6.1a
- 17.7.1a
- denali-16.3.3
- denali-16.3.4
- denali-16.3.5
- denali-16.3.7
- denali-16.3.9
- everest-16.6.2
- everest-16.6.3
- everest-16.6.4
- fuji-16.9.2
- fuji-16.9.3
- fuji-16.9.4
- fuji-16.9.5
- fuji-16.9.6
- fuji-16.9.7
- fuji-16.9.8
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
7.5 HIGH CISA ADP
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 Impact None
Integrity Impact None
Availability Impact High
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
YesTechnical Impact
PartialDecision
n/aAssessed Nov 15, 2024 · SSVC 2.0.3
1.44% 0.01444
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.01444
Score over time
2024–2026- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (5 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.44% (0.01444) | 72.31th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.39% (0.01386) | 68.56th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.40% (0.00399) | 58.51th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.05% (0.00046) | 19.03th | v3 (v2023.03.01) |
| Nov 16, 2024 | 0.05% (0.00046) | 18.36th | v3 (v2023.03.01) |
Weaknesses (1)
References (2)
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner cisco
Published Nov 15, 2024
Updated Jan 27, 2025
Reserved Nov 2, 2021
Link CVE-2022-20685
CISA Vulnrichment
Updated Nov 15, 2024