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No exploitation reportedFix available

CVE-2020-11999

No exploitation reported by the sources we read.

  • Published2020-06-15
  • WeaknessCWE-20

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

FactoryTalk Linx versions 6.00, 6.10, and 6.11, RSLinx Classic v4.11.00 and prior,Connected Components Workbench: Version 12 and prior, ControlFLASH: Version 14 and later, ControlFLASH Plus: Version 1 and later, FactoryTalk Asset Centre: Version 9 and later, FactoryTalk Linx CommDTM: Version 1 and later, Studio 5000 Launcher: Version 31 and later Stud, 5000 Logix Designer software: Version 32 and prior is vulnerable. An exposed API call allows users to provide files to be processed without sanitation. This may allow an attacker to specify a filename to execute unauthorized code and modify files or data.

Timeline

dates in UTC
  1. 2020-06-1520:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2020-11999?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2020-11999?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Rockwellautomation factorytalk linx
BranchAffectedFixed in
6.0= 6.00no fix published
6.10= 6.10no fix published
6.11= 6.11no fix published
Rockwellautomation rslinx classic
BranchAffectedFixed in
4.11≤ 4.11.00no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

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-20-163-02 CISA9 known affected

    Rockwell Automation FactoryTalk Linx Software (Update A)

    RSLinx Classic: v4.11.00 and prior (Versions removed from the scope of this advisory) · FactoryTalk Linx CommDTM: Version 1 and later · Studio 5000 Launcher: Version 31 and later · +6 more

Full record on NVD

Fix

  1. Vendor fix CISA ICSA-20-163-02 · 9 productsFactoryTalk Linx/Services patch RAID# 1124820 (Login Required)
  2. Vendor fix CISA ICSA-20-163-02 · 9 productsFactoryTalk Linx patch RAID# 1126433 (Login Required)
  3. Mitigation from the vendor CISA ICSA-20-163-02 · 9 productsPatch Roll-up for CPR9 SRx (Login Required)
  4. Mitigation from the vendor CISA ICSA-20-163-02 · 9 productsBlock all traffic to EtherNet/IP or other CIP protocol-based devices from outside the manufacturing zone by blocking or restricting access to TCP Ports 2222, 7153, and UDP Port 44818 using proper network infrastructure controls, such as firewalls, UTM devices, or other security appliances. For more…
  5. Mitigation from the vendor CISA ICSA-20-163-02 · 9 productsLocate control system networks and devices behind firewalls and isolate them from the business network.
  6. Mitigation from the vendor CISA ICSA-20-163-02 · 9 productsWhen remote access is required, use secure methods, such as virtual private networks (VPNs), recognizing that VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize that VPN is only as secure as the connected devices.

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • NVDCVSS 3.18.1read 2026-10-23
  • NVDCVSS 2.05.5read 2026-10-23
  • CNAweakness (CWE)CWE-20read 2026-10-23
  • NVDweakness (CWE)CWE-20read 2026-10-23
  • FIRST EPSSEPSS score2.8 %2026-10-22

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Published
2020-06-15
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2020-11999?

FactoryTalk Linx versions 6.00, 6.10, and 6.11, RSLinx Classic v4.11.00 and prior,Connected Components Workbench: Version 12 and prior, ControlFLASH: Version 14 and later, ControlFLASH Plus: Version 1 and later, FactoryTalk Asset Centre: Version 9 and later, FactoryTalk Linx CommDTM: Version 1 and later, Studio 5000 Launcher: Version 31 and later Stud, 5000 Logix Designer software: Version 32 and prior is vulnerable. An exposed API call allows users to provide files to be processed without sanitation. This may allow an attacker to specify a filename to execute unauthorized code and modify files or data.

Is CVE-2020-11999 actively exploited?

Active exploitation of CVE-2020-11999 has not been confirmed. Its EPSS score was 2.8% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-11999?

CVE-2020-11999 has a CVSS v3 base score of 8.1 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.

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