No exploitation reported

CVE-2016-5645

No exploitation reported by the sources we read.

Published2016-08-24
WeaknessCWE-284 · CWE-798

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

Rockwell Automation MicroLogix 1400 PLC 1766-L32BWA, 1766-L32AWA, 1766-L32BXB, 1766-L32BWAA, 1766-L32AWAA, and 1766-L32BXBA devices have a hardcoded SNMP community, which makes it easier for remote attackers to load arbitrary firmware updates by leveraging knowledge of this community.

Timeline

dates in UTC

2016-08-2402:00CVE publishedNVD
2026-10-2319:23EPSS crossed 10 %FIRST EPSS

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-2016-5645?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2016-5645?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Rockwellautomation 1766-l32awa

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

Rockwellautomation 1766-l32awaa

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

Rockwellautomation 1766-l32bwa

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

3 more products in the sources.

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-16-224-01 CISA6 known affected
Rockwell Automation MicroLogix 1400 SNMP Credentials Vulnerability
Rockwell Automation 1766-L32BWA: vers:all/* · Rockwell Automation 1766-L32AWA: vers:all/* · Rockwell Automation 1766-L32BXB: vers:all/* · +3 more

Full record on NVD

Fix

Mitigation from the vendor CISA ICSA-16-224-01 · 6 productsDue to the nature of this product’s firmware update process, this capability cannot be removed from the product. Instead, mitigations are offered to reduce risk of this capability being used by a malicious actor. Rockwell Automation recommends that users using affected versions of the MicroLogix 14…
Mitigation from the vendor CISA ICSA-16-224-01 · 6 productsUtilize the product’s “RUN” keyswitch setting to prevent unauthorized and undesired firmware update operations and other disruptive configuration changes. Utilize proper network infrastructure controls, such as firewalls, to help ensure that SNMP requests from unauthorized sources are blocked. See …
Mitigation from the vendor CISA ICSA-16-224-01 · 6 productsDisable the SNMP service on this product. The SNMP service is enabled by default. See Page 128 in the MicroLogix 1400 product manual, (http://literature.rockwellautomation.com/idc/groups/literature/documents/um/1766-um001_-en-p.pdf), web site last accessed August 11, 2016, for detailed instructions…
Mitigation from the vendor CISA ICSA-16-224-01 · 6 productsNote: It will be necessary to re-enable SNMP to update firmware on this product. After the upgrade is complete, disable the SNMP service once again.
Mitigation from the vendor CISA ICSA-16-224-01 · 6 productsNote: Changing the SNMP community strings is not an effective mitigation.
Mitigation from the vendor CISA ICSA-16-224-01 · 6 productsMinimize network exposure for all control system devices and/or systems and ensure that they are not accessible from the Internet. Locate control system networks and devices behind firewalls, and isolate them from the business network. When remote access is required, use secure methods, such as vir…

Advisories and patches

ics-cert.us-cert.govMitigation

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2026-06-03
OpenCVESSVC decisionnone—
CISA-ADPCVSS 3.17.32026-06-03
NVDCVSS 3.07.3read 2026-10-23
NVDCVSS 2.07.5read 2026-10-23
CISA-ADPweakness (CWE)CWE-7982026-06-03
NVDweakness (CWE)CWE-284read 2026-10-23
FIRST EPSSEPSS score29.6 %read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Published: 2016-08-24
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2016-5645?

Is CVE-2016-5645 actively exploited?

Active exploitation of CVE-2016-5645 has not been confirmed. Its EPSS score was 29.6% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2016-5645?

CVE-2016-5645 has a CVSS v3 base score of 7.3 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.

Hear about the next vulnerability in your software

Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

Get alerts for this product CISA KEV additions, October 2026 Search CVEs

No credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Following what attackers exploit right now? The CISA KEV additions of the month, with their patch deadlines.
Running this software? Vulnerability monitoring alerts you to new vulnerabilities in your products.

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database