CRITICAL

CVE-2024-21785

CVSS v3

9.8

CRITICAL

EPSS Score

1.5 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

poc

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

ICSA-24-144-01 CISA12 known affected
AutomationDirect Productivity PLCs
AutomationDirect Productivity 3000 P3-550E CPU: FW_1.2.10.9 · AutomationDirect Productivity 3000 P3-550E CPU: SW_4.1.1.10 · AutomationDirect Productivity 3000 P3-550 CPU: FW_1.2.10.9

Full record on NVD

Description

A leftover debug code vulnerability exists in the Telnet Diagnostic Interface functionality of AutomationDirect P3-550E 1.2.10.9. A specially crafted series of network requests can lead to unauthorized access. An attacker can send a sequence of requests to trigger this vulnerability.

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2024-05-28
Last Modified: 2025-02-12

Frequently asked questions

What is CVE-2024-21785?

Is CVE-2024-21785 actively exploited?

A proof-of-concept exploit exists for CVE-2024-21785, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2024-21785?

CVE-2024-21785 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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