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TI-2021-05574 Aliases CVE-2021-22681GHSA-pvh9-p4pw-h78q

Insufficiently protected credentials in Rockwell Automation Studio 5000 Logix Designer…

Priority CRITICAL 100Exploited in the wildCWE-522Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-522.

Summary

Rockwell Automation Studio 5000 Logix Designer Versions 21 and later, and RSLogix 5000 Versions 16 through 20 use a key to verify Logix controllers are communicating with Rockwell Automation CompactLogix 1768, 1769, 5370, 5380, 5480: ControlLogix 5550, 5560, 5570, 5580; DriveLogix 5560, 5730, 1794-L34; Compact GuardLogix 5370, 5380; GuardLogix 5570, 5580; SoftLogix 5800. Rockwell Automation Studio 5000 Logix Designer Versions 21 and later and RSLogix 5000: Versions 16 through 20 are vulnerable because an unauthenticated attacker could bypass this verification mechanism and authenticate with Rockwell Automation CompactLogix 1768, 1769, 5370, 5380, 5480: ControlLogix 5550, 5560, 5570, 5580; DriveLogix 5560, 5730, 1794-L34; Compact GuardLogix 5370, 5380; GuardLogix 5570, 5580; SoftLogix 5800.

Why it matters now

Exploitation Active In CISA KEV since 2026-03-05CISA due date 2026-03-26
EPSS 0.6363 99th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Active
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
—Rockwell Automation Studio 5000 Logix Designer, RSLogix 5000, Logix ControllersRSLogix 5000 Versions 16 through 20; Studio 5000 Logix Designer: Versions 21 and later; CompactLogix 1768, 1769, 5370, 5380, 5480; ControlLogix 5550, 5560, 5570, 5580; DriveLogix 5560, 5730, 1794-L34; Compact GuardLogix 5370, 5380; GuardLogix 5570, 5580; SoftLogix 5800—No fix listedCNA
  • Rockwell Automation Studio 5000 Logix Designer, RSLogix 5000, Logix Controllers Vendor— Affected RSLogix 5000 Versions 16 through 20; Studio 5000 Logix Designer: Versions 21 and later; CompactLogix 1768, 1769, 5370, 5380, 5480; ControlLogix 5550, 5560, 5570, 5580; DriveLogix 5560, 5730, 1794-L34; Compact GuardLogix 5370, 5380; GuardLogix 5570, 5580; SoftLogix 5800 Fixed in — No fix listed CNA

CPE configurations NVD · 20

CPEVersionsRoleVendor
cpe:2.3:a:rockwellautomation:factorytalk_services_platform:*:*:*:*:*:*:*:*2.10VulnerableRockwell
cpe:2.3:a:rockwellautomation:rslogix_5000:*:*:*:*:*:*:*:*16 – 20VulnerableRockwell
cpe:2.3:a:rockwellautomation:studio_5000_logix_designer:*:*:*:*:*:*:*:*21.0VulnerableRockwell
cpe:2.3:h:rockwellautomation:compact_guardlogix_5370:-:*:*:*:*:*:*:*not specified by NVDRunning onRockwell
cpe:2.3:h:rockwellautomation:compact_guardlogix_5380:-:*:*:*:*:*:*:*not specified by NVDRunning onRockwell
cpe:2.3:h:rockwellautomation:compactlogix_1768:-:*:*:*:*:*:*:*not specified by NVDRunning onRockwell
cpe:2.3:h:rockwellautomation:compactlogix_1769:-:*:*:*:*:*:*:*not specified by NVDRunning onRockwell
cpe:2.3:h:rockwellautomation:compactlogix_5370:-:*:*:*:*:*:*:*not specified by NVDRunning onRockwell
cpe:2.3:h:rockwellautomation:compactlogix_5380:-:*:*:*:*:*:*:*not specified by NVDRunning onRockwell
cpe:2.3:h:rockwellautomation:compactlogix_5480:-:*:*:*:*:*:*:*not specified by NVDRunning onRockwell
  • cpe:2.3:a:rockwellautomation:factorytalk_services_platform:*:*:*:*:*:*:*:* Versions 2.10 Vulnerable ·Rockwell
  • cpe:2.3:a:rockwellautomation:rslogix_5000:*:*:*:*:*:*:*:* Versions 16 – 20 Vulnerable ·Rockwell
  • cpe:2.3:a:rockwellautomation:studio_5000_logix_designer:*:*:*:*:*:*:*:* Versions 21.0 Vulnerable ·Rockwell
  • cpe:2.3:h:rockwellautomation:compact_guardlogix_5370:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Rockwell
  • cpe:2.3:h:rockwellautomation:compact_guardlogix_5380:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Rockwell
  • cpe:2.3:h:rockwellautomation:compactlogix_1768:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Rockwell
  • cpe:2.3:h:rockwellautomation:compactlogix_1769:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Rockwell
  • cpe:2.3:h:rockwellautomation:compactlogix_5370:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Rockwell
  • cpe:2.3:h:rockwellautomation:compactlogix_5380:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Rockwell
  • cpe:2.3:h:rockwellautomation:compactlogix_5480:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Rockwell
Show 10 more CPE
CPEVersionsRoleVendor
cpe:2.3:h:rockwellautomation:controllogix_5550:-:*:*:*:*:*:*:*not specified by NVDRunning onRockwell
cpe:2.3:h:rockwellautomation:controllogix_5560:-:*:*:*:*:*:*:*not specified by NVDRunning onRockwell
cpe:2.3:h:rockwellautomation:controllogix_5570:-:*:*:*:*:*:*:*not specified by NVDRunning onRockwell
cpe:2.3:h:rockwellautomation:controllogix_5580:-:*:*:*:*:*:*:*not specified by NVDRunning onRockwell
cpe:2.3:h:rockwellautomation:drivelogix_1794-l34:-:*:*:*:*:*:*:*not specified by NVDRunning onRockwell
cpe:2.3:h:rockwellautomation:drivelogix_5560:-:*:*:*:*:*:*:*not specified by NVDRunning onRockwell
cpe:2.3:h:rockwellautomation:drivelogix_5730:-:*:*:*:*:*:*:*not specified by NVDRunning onRockwell
cpe:2.3:h:rockwellautomation:guardlogix_5570:-:*:*:*:*:*:*:*not specified by NVDRunning onRockwell
cpe:2.3:h:rockwellautomation:guardlogix_5580:-:*:*:*:*:*:*:*not specified by NVDRunning onRockwell
cpe:2.3:h:rockwellautomation:softlogix_5800:-:*:*:*:*:*:*:*not specified by NVDRunning onRockwell
  • cpe:2.3:h:rockwellautomation:controllogix_5550:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Rockwell
  • cpe:2.3:h:rockwellautomation:controllogix_5560:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Rockwell
  • cpe:2.3:h:rockwellautomation:controllogix_5570:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Rockwell
  • cpe:2.3:h:rockwellautomation:controllogix_5580:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Rockwell
  • cpe:2.3:h:rockwellautomation:drivelogix_1794-l34:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Rockwell
  • cpe:2.3:h:rockwellautomation:drivelogix_5560:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Rockwell
  • cpe:2.3:h:rockwellautomation:drivelogix_5730:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Rockwell
  • cpe:2.3:h:rockwellautomation:guardlogix_5570:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Rockwell
  • cpe:2.3:h:rockwellautomation:guardlogix_5580:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Rockwell
  • cpe:2.3:h:rockwellautomation:softlogix_5800:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Rockwell

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-03-05 Added to CISA KEV
  2. 2026-10-02 Threatist record created from CVE-2021-22681
  3. 2026-10-03 Alias added: GHSA-pvh9-p4pw-h78q

References

  • TI-2024-14577 Rockwell Automation FactoryTalk® Service Platform Service Token Vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2020-11367 In Rockwell Automation FactoryTalk Services Platform Versions 6.10.00 and 6.11.00, there… CVSS 3.1CRITICAL 10.0
  • TI-2020-05615 Deserialization of untrusted data in Rockwell Automation All versions of FactoryTalk… CVSS 3.1CRITICAL 9.8
  • TI-2023-24910 Rockwell Automation FactoryTalk Services Platform Elevated Privileges Vulnerability CVSS 3.1HIGH 8.1
  • TI-2021-12569 Rockwell Automation FactoryTalk Services Platform Protection Mechanism Failure CVSS 3.1HIGH 8.8
  • TI-2024-14575 Rockwell Automation FactoryTalk® Service Platform Elevated Privileges Vulnerability Through Web Service Functionality CVSS 3.1CRITICAL 9.0
See all 12 →

Sources