What is the CVSS score of CVE-2024-21916?

CVE-2024-21916 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.6%.

Controllogix 5570 Controller Firmware CVE-2024-21916

HIGH

Buffer Overflow (CWE-119)

2024-01-31 PSIRT@rockwellautomation.com

Buffer Overflow Rockwell Controllogix 5570 Controller Firmware Guardlogix 5570 Controller Firmware Controllogix 5570 Redundant Controller Firmware

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Lifecycle Timeline

CVE Published

Jan 31, 2024 - 19:15 nvd

HIGH 7.5

DescriptionNVD

A denial-of-service vulnerability exists in specific Rockwell Automation ControlLogix ang GuardLogix controllers. If exploited, the product could potentially experience a major nonrecoverable fault (MNRF). The device will restart itself to recover from the MNRF.

AnalysisAI

A denial-of-service vulnerability exists in specific Rockwell Automation ControlLogix ang GuardLogix controllers. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Buffer Overflow (CWE-119), which allows attackers to corrupt memory to execute arbitrary code or crash the application. A denial-of-service vulnerability exists in specific Rockwell Automation ControlLogix ang GuardLogix controllers. If exploited, the product could potentially experience a major nonrecoverable fault (MNRF). The device will restart itself to recover from the MNRF. Affected products include: Rockwellautomation Controllogix 5570 Controller Firmware, Rockwellautomation Guardlogix 5570 Controller Firmware, Rockwellautomation Controllogix 5570 Redundant Controller Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Use memory-safe languages or bounds-checking. Enable ASLR, DEP/NX, stack canaries. Use safe string functions.