Rockwell Automation GuardLogix and ControlLogix controllers Vulnerable to Denial-Of-Service Attack
An unauthorized user could use a specially crafted sequence of Ethernet/IP messages, combined with heavy traffic loading to cause a denial-of-service condition in Rockwell Automation Logix controllers resulting in a major non-recoverable fault. If the target device becomes unavailable, a user would have to clear the fault and redownload the user project file to bring the device back online and continue normal operation.
- Published
- Dec 19, 2022
- Updated
- Jun 17, 2026
- EPSS
- 1.3% · 68th percentile
- CWE
- CWE-20
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Report tools
Action score
30
Monitor
Low priority for now.
- CVSS
- 30 / 40 · 7.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 1.3%
CISA SSVC decision
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- 7.5
- CNA · Rockwell
- 8.6
- 1.1 point gap
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| rockwellautomation | compactlogix 5480 firmware | cpe:2.3:o:rockwellautomation:compactlogix_5480_firmware |
| rockwellautomation | compactlogix 5480 | cpe:2.3:h:rockwellautomation:compactlogix_5480 |
| rockwellautomation | compactlogix 5580 firmware | cpe:2.3:o:rockwellautomation:compactlogix_5580_firmware |
| rockwellautomation | compactlogix 5580 | cpe:2.3:h:rockwellautomation:compactlogix_5580 |
| rockwellautomation | guardlogix 5580 firmware | cpe:2.3:o:rockwellautomation:guardlogix_5580_firmware |
| rockwellautomation | guardlogix 5580 | cpe:2.3:h:rockwellautomation:guardlogix_5580 |
| rockwellautomation | compact guardlogix 5380 firmware | cpe:2.3:o:rockwellautomation:compact_guardlogix_5380_firmware |
| rockwellautomation | compact guardlogix 5380 | cpe:2.3:h:rockwellautomation:compact_guardlogix_5380 |
| rockwellautomation | compactlogix 5380 firmware | cpe:2.3:o:rockwellautomation:compactlogix_5380_firmware |
| rockwellautomation | compactlogix 5380 | cpe:2.3:h:rockwellautomation:compactlogix_5380 |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- rockwellautomation compact guardlogix 5380 firmware31.011 and later
- rockwellautomation compactlogix 5380 firmware31.011 and later
- rockwellautomation compactlogix 5480 firmware32.011 and later
- rockwellautomation compactlogix 5580 firmware31.011 and later
- rockwellautomation guardlogix 5580 firmware32.011 and later
Versions reported by the vendor
Affected version ranges reported by the assigning authority (Rockwell). Independent of NVD's CPE analysis and usually ahead of it.
Rockwell Automation Compact GuardLogix 5380
- 31.011 and lateraffected
Rockwell Automation CompactLogix 5380
- 31.011 and lateraffected
Rockwell Automation CompactLogix 5480
- 32.011 and lateraffected
Rockwell Automation ControlLogix 5580
- 31.011 and lateraffected
Rockwell Automation GuardLogix 5580
- 31.011 and lateraffected
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- none
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- High
Weakness class (CWE)
CWE-20 · Improper Input ValidationCVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- Buffer Overflow via Environment VariablesCAPEC-10likelihood: High · High
- Server Side Include (SSI) InjectionCAPEC-101likelihood: High · High
- Cross Zone ScriptingCAPEC-104likelihood: Medium · High
- Command Line Execution through SQL InjectionCAPEC-108likelihood: Low · Very High
- Object Relational Mapping InjectionCAPEC-109likelihood: Low · High
- SQL Injection through SOAP Parameter TamperingCAPEC-110likelihood: High · Very High
- Double EncodingCAPEC-120likelihood: Low · Medium
- Subverting Environment Variable ValuesCAPEC-13likelihood: High · Very High
ATT&CK techniques
- Obfuscated Files or InformationT1027
- Masquerading: Invalid Code SignatureT1036.001
- Steal Web Session CookieT1539
- Subvert Trust Controls: Code SigningT1553.002
- Impair Defenses:Impair Command History LoggingT1562.003
- Hijack Execution Flow:Dynamic Linker HijackingT1574.006
- Hijack Execution Flow:Path Interception by PATH Environment VariableT1574.007
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
Vendor advisories and official records. Exploit/PoC links are deliberately left out.