HOMEVULNERABILITIESCVE-2024-3493
HIGH

CVE-2024-3493

CWE-20Published: April 15, 2024· Updated: Jun 17, 2026

7.5
CVSS v3.1

Official Description

A specific malformed fragmented packet type (fragmented packets may be generated automatically by devices that send large amounts of data) can cause a major nonrecoverable fault (MNRF) Rockwell Automation's ControlLogix 5580, Guard Logix 5580, CompactLogix 5380, and 1756-EN4TR. If exploited, the affected product will become unavailable and require a manual restart to recover it. Additionally, an MNRF could result in a loss of view and/or control of connected devices.

NVD Source

Technical Analysis

CVE-2024-3493 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Vendors & Products

rockwellautomation16 product(s)
controllogix 5580 firmwarecontrollogix 5580guardlogix 5580 firmwareguardlogix 5580compactlogix 5380 firmwarecompactlogix 5380compact guardlogix 5380 firmwarecompact guardlogix 53801756-en4tr firmware1756-en4trcontrollogix 5580 process firmwarecontrollogix 5580 process+4
Source: NVD CPE · 16 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

All References (2)

→
https://www.rockwellautomation.com/en-us/support/advisory.SD1666.htmlBroken Link
→
https://www.rockwellautomation.com/en-us/support/advisory.SD1666.htmlBroken Link

Quick Facts

CVE IDCVE-2024-3493
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-20
CISA KEVNo
Affected1 vendor(s)
PublishedApr 15, 2024

Related CVEs (CWE-20)

CVE-2008-0244
10.0
CVE-2011-0285
10.0
CVE-2007-6494
10.0
CVE-2023-41917
10.0
CVE-2011-1018
10.0
CVE-2008-4910
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2024-3493 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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