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CVE-2016-9338· NVD / CVE Program· CNA icscert

An issue was discovered in Rockwell Automation Allen-Bradley MicroLogix 1100 controller 1763-L16AWA, Series A and B, Version 14.000 and prio

An issue was discovered in Rockwell Automation Allen-Bradley MicroLogix 1100 controller 1763-L16AWA, Series A and B, Version 14.000 and prior versions; 1763-L16BBB, Series A and B, Version 14.000 and prior versions; 1763-L16BWA, Series A and B, Version 14.000 and prior versions; and 1763-L16DWD, Series A and B, Version 14.000 and prior versions. Because of an Incorrect Permission Assignment for Critical Resource, users with administrator privileges may be able to remove all administrative users requiring a factory reset to restore ancillary web server function. Exploitation of this vulnerability will still allow the affected device to function in its capacity as a controller.

LowCVSS 2.7 · v3.0—No exploit No fix recorded
Published
Feb 13, 2017
Updated
Jun 16, 2026
EPSS
2.4% · 84th percentile
CWE
—
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Action score

11

Monitor

Low priority for now.

CVSS
10 / 40 · 2.7 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 2.4%

Affected systems

VendorProduct
rockwellautomation1763-l16awa series a
rockwellautomation1763-l16awa series b
rockwellautomation1763-l16bbb series a
rockwellautomation1763-l16bbb series b
rockwellautomation1763-l16bwa series a
rockwellautomation1763-l16bwa series b
rockwellautomation1763-l16dwd series a
rockwellautomation1763-l16dwd series b
rockwellautomation1766-l32awa series a
rockwellautomation1766-l32awa series b
rockwellautomation1766-l32awaa series a
rockwellautomation1766-l32awaa series b

and 8 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • rockwellautomation 1763-l16awa series aup to 14.000 inclusive
  • rockwellautomation 1763-l16awa series bup to 14.000 inclusive
  • rockwellautomation 1763-l16bbb series aup to 14.000 inclusive
  • rockwellautomation 1763-l16bbb series bup to 14.000 inclusive
  • rockwellautomation 1763-l16bwa series aup to 14.000 inclusive
  • rockwellautomation 1763-l16bwa series bup to 14.000 inclusive
  • rockwellautomation 1763-l16dwd series aup to 14.000 inclusive
  • rockwellautomation 1763-l16dwd series bup to 14.000 inclusive
  • rockwellautomation 1766-l32awa series aup to 15.004 inclusive
  • rockwellautomation 1766-l32awa series bup to 15.004 inclusive
  • rockwellautomation 1766-l32awaa series aup to 15.004 inclusive
  • rockwellautomation 1766-l32awaa series bup to 15.004 inclusive
  • rockwellautomation 1766-l32bwa series aup to 15.004 inclusive
  • rockwellautomation 1766-l32bwa series bup to 15.004 inclusive
  • rockwellautomation 1766-l32bwaa series aup to 15.004 inclusive
  • rockwellautomation 1766-l32bwaa series bup to 15.004 inclusive
  • rockwellautomation 1766-l32bxb series aup to 15.004 inclusive
  • rockwellautomation 1766-l32bxb series bup to 15.004 inclusive
  • rockwellautomation 1766-l32bxba series aup to 15.004 inclusive
  • rockwellautomation 1766-l32bxba series bup to 15.004 inclusive

Versions reported by the vendor

Affected version ranges reported by the assigning authority (icscert). Independent of NVD's CPE analysis and usually ahead of it.

  • n/a Rockwell Automation MicroLogix 1100 and 1400

    • Rockwell Automation MicroLogix 1100 and 1400affected

Same product

rockwellautomation: all records

Other highest-scoring records for the same primary product.

  • CVE-2017-7898An Improper Restriction of Excessive Authentication Attempts issue was discovered in Rockwell Automation Allen-Bradley MicroLogix 1100 progr
    41Plan
  • CVE-2017-7903A Weak Password Requirements issue was discovered in Rockwell Automation Allen-Bradley MicroLogix 1100 programmable-logic controllers 1763-L
    40Plan
  • CVE-2017-7902A "Reusing a Nonce, Key Pair in Encryption" issue was discovered in Rockwell Automation Allen-Bradley MicroLogix 1100 programmable-logic con
    40Plan
  • CVE-2017-7899An Information Exposure issue was discovered in Rockwell Automation Allen-Bradley MicroLogix 1100 programmable-logic controllers 1763-L16AWA
    40Plan
  • CVE-2017-7901A Predictable Value Range from Previous Values issue was discovered in Rockwell Automation Allen-Bradley MicroLogix 1100 programmable-logic
    36Monitor
  • CVE-2016-9334An issue was discovered in Rockwell Automation Allen-Bradley MicroLogix 1100 controller 1763-L16AWA, Series A and B, Version 14.000 and prio
    30Monitor

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.

EPSS, last 120 days

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 researchers

Finders, 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.
  • Administrator privileges are required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
low · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
High
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
Low

Weakness class (CWE)

—

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L

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.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

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 help

Change 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.

All records