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CVE-2017-14465

48
FAUCET Score

CVE-2017-14465 is a critical access control vulnerability affecting Allen Bradley Micrologix 1400 Series B PLCs running firmware version 21.2 and earlier. An unauthenticated attacker can send specially crafted packets to perform read or write operations, leading to sensitive information disclosure, modification of settings, or alteration of ladder logic, potentially causing unpredictable PLC behavior. With a CVSS score of 9.8, this vulnerability is easily exploitable over the network with low complexity and no user interaction, resulting in high impact to confidentiality, integrity, and availability. Despite its severity, there is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 21.2CPE matchmatch criteria
cpe:2.3:o:rockwellautomation:micrologix_1400_b_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

10.0CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
6.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
34.17%
Probability of exploitation in next 30 days
EPSS Percentile
98.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.3417 is in the 95th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

projectdiscoverypatch availablevia llm_extracted
Fixed in: FRN 21.004 or later
View patch

Vendor Advisories (1)

projectdiscoveryllm-projectdiscovery-93563e1fe937730c

Forcing PLC I/O

Apr 16, 2018

References

talosintelligence.com / vulnerability_reports/TALOS-2017-0443
ExploitThird Party Advisory