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P3 550E Firmware CVE-2024-24851

HIGH
Buffer Access with Incorrect Length Value (CWE-805)
2024-05-28 talos-cna@cisco.com
7.5
CVSS 3.1 · Vendor: cisco
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Vulnerability Assessment

Weakness
CWE
ASVS 5.0
V15 - Secure Coding and Architecture Buffer access bounds checking
Impact

CVSS score of 7.5 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. Public proof-of-concept exploit code is available.

Exploit ScenarioDerived

This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the high-severity affected system.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 1.4% exploitation probability (EPSS)

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AnalysisAI

A heap-based buffer overflow vulnerability exists in the Programming Software Connection FiBurn functionality of AutomationDirect P3-550E 1.2.10.9. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified under CWE-805. A heap-based buffer overflow vulnerability exists in the Programming Software Connection FiBurn functionality of AutomationDirect P3-550E 1.2.10.9. A specially crafted network packet can lead to a buffer overflow. An attacker can send an unauthenticated packet to trigger this vulnerability. Affected products include: Automationdirect P3-550E Firmware, Automationdirect P3-550 Firmware, Automationdirect P3-530 Firmware, Automationdirect P2-550 Firmware, Automationdirect P1-550 Firmware.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (cisco) PRIMARY 7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Primary rating from Vendor (cisco) · only source for this CVE.

CVSS VectorVendor: cisco

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

DescriptionCVE.org

A heap-based buffer overflow vulnerability exists in the Programming Software Connection FiBurn functionality of AutomationDirect P3-550E 1.2.10.9. A specially crafted network packet can lead to a buffer overflow. An attacker can send an unauthenticated packet to trigger this vulnerability.

Threat Intelligence Overview

EPSS Score
1.4%
Top 30% exploitable
Exploit
POC
Public exploit code exists
Data Quality
2 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC Yes
EPSS 1.4%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
Poc
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact· derived
Medium

Priority Score

59
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +38
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

Affected Products (CPE)CVE.org

cpe:2.3:o:automationdirect:p3-550e_firmware:1.2.10.9:*:*:*:*:*:*:*
cpe:2.3:o:automationdirect:p3-550e_firmware:4.1.1.10:*:*:*:*:*:*:*
cpe:2.3:o:automationdirect:p3-550_firmware:1.2.10.9:*:*:*:*:*:*:*
cpe:2.3:o:automationdirect:p3-550_firmware:4.1.1.10:*:*:*:*:*:*:*
cpe:2.3:o:automationdirect:p3-530_firmware:1.2.10.9:*:*:*:*:*:*:*
cpe:2.3:o:automationdirect:p3-530_firmware:4.1.1.10:*:*:*:*:*:*:*
cpe:2.3:o:automationdirect:p2-550_firmware:1.2.10.10:*:*:*:*:*:*:*
cpe:2.3:o:automationdirect:p2-550_firmware:4.1.1.10:*:*:*:*:*:*:*
cpe:2.3:o:automationdirect:p1-550_firmware:1.2.10.10:*:*:*:*:*:*:*
cpe:2.3:o:automationdirect:p1-550_firmware:4.1.1.10:*:*:*:*:*:*:*
cpe:2.3:o:automationdirect:p1-540_firmware:1.2.10.10:*:*:*:*:*:*:*
cpe:2.3:o:automationdirect:p1-540_firmware:4.1.1.10:*:*:*:*:*:*:*
CVE-2024-24963 CRITICAL POC
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A stack-based buffer overflow vulnerability exists in the Programming Software Connection FileSelect functionality of Au

CVE-2024-24962 CRITICAL POC
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A stack-based buffer overflow vulnerability exists in the Programming Software Connection FileSelect functionality of Au

CVE-2024-21785 CRITICAL POC
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A leftover debug code vulnerability exists in the Telnet Diagnostic Interface functionality of AutomationDirect P3-550E

CVE-2024-22187 CRITICAL POC
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A write-what-where vulnerability exists in the Programming Software Connection Remote Memory Diagnostics functionality o

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CVE-2024-24958 HIGH POC
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CVE-2024-24957 HIGH POC
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Several out-of-bounds write vulnerabilities exist in the Programming Software Connection FileSystem API functionality of

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Several out-of-bounds write vulnerabilities exist in the Programming Software Connection FileSystem API functionality of

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A heap-based buffer overflow vulnerability exists in the Programming Software Connection CurrDir functionality of Automa

CVE-2024-24946 HIGH POC
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A heap-based buffer overflow vulnerability exists in the Programming Software Connection CurrDir functionality of Automa

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