CVE-2016-5645: rockwellautomation 1766-l32awa Improper Access Control
CVSS: 7.5v2.0HighModified
Published 24-08-2016Last modified 03-06-2026
Vulnerability summary
CVE-2016-5645 is a high (CVSS 7.5) Improper Access Control vulnerability in rockwellautomation 1766-l32awa. EPSS estimates a 29.61% chance of exploitation in the next 30 days, higher than 98.1% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v2.0 (NVD)EPSS score
29.61%
0%100%
High · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 24-08-2016PublishedVulnerability first disclosed.
- 03-06-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
4 scores · 2 sources · 3 versionsHigh 7.3Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:LSourcesAll 2 agree
- NVDNIST7.3HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
High 7.3Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:LSourcesSingle source
High 7.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
29.61%
Chance of exploitation in the next 30 days
Percentile
98%
Versus all other CVEs
30-day change
0.00 pp
From 29.61% on 22-09-2026
22-09-202622-10-2026
EPSS score29.61%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
1 vendor · 6 products
References
2 links- ics-cert.us-cert.gov/advisories/ICSA-16-224-01X Refsource MISCMitigationThird Party AdvisoryUS Government Resource