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Fencer Vulns
high 8.2

CVE-2024-24946 json

A heap-based buffer overflow vulnerability exists in the Programming Software Connection CurrDir functionality of AutomationDirect P3-550E…

published 2024-05-28 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-22309

cvss
8.2
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 56%
public exploits
0
none known

Summary

A heap-based buffer overflow vulnerability exists in the Programming Software Connection CurrDir functionality of AutomationDirect P3-550E 1.2.10.9. A specially crafted network packet can lead to denial of service. An attacker can send an unauthenticated packet to trigger these vulnerability.This CVE tracks the heap corruption that occurs at offset `0xb686c` of version 1.2.10.9 of the P3-550E firmware, which occurs when a call to `memset` relies on an attacker-controlled length value and corrupts any trailing heap allocations.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-24-144-01 updated cvss 8.2

AutomationDirect Productivity PLCs

  • AutomationDirect Productivity 1000 P1-540 CPU FW_1.2.10.10, SW_4.1.1.10 AutomationDirect Productivity 1000 P1-550 CPU FW_1.2.10.10, SW_4.1.1.10 AutomationDirect Productivity 2000 P2-550 CPU FW_1.2.10.10, SW_4.1.1.10 AutomationDirect Productivity 3000 P3-530 CPU FW_1.2.10.9, SW_4.1.1.10 AutomationDirect Productivity 3000 P3-550 CPU FW_1.2.10.9, SW_4.1.1.10 AutomationDirect Productivity 3000 P3-550E CPU FW_1.2.10.9, SW_4.1.1.10
    affected: mitigation “AutomationDirect recommends that users:” automationdirect.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.78% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • talosintelligence.com https://talosintelligence.com/vulnerability_reports/TALOS-2024-1937 referenced PoC, tagged "exploit" by a source, unverified
  • talosintelligence.com https://www.talosintelligence.com/vulnerability_reports/TALOS-2024-1937 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Affected products

  • AutomationDirect P3-550E
  • automationdirect p3-550e_firmware

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.