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CVE-2020-14483

15
FAUCET Score

CVE-2020-14483 describes a vulnerability in Tridium Niagara and Niagara Enterprise Security where a failed TLS handshake can cause a connection to hang, leading to a Niagara thread becoming unresponsive and requiring a manual restart. This issue affects specific versions of Niagara (4.6.96.28, 4.7.109.20, 4.7.110.32, 4.8.0.110) and Niagara Enterprise Security (2.4.31, 2.4.45, 4.8.0.35). The vulnerability has a CVSS score of 4.3 (Medium), indicating a low impact on availability, requiring adjacent network access, and no user interaction. There is currently 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
4.6.96.28CPE matchmatch criteria
cpe:2.3:a:tridium:niagara:4.6.96.28:*:*:*:*:*:*:*
4.7.109.20CPE matchmatch criteria
cpe:2.3:a:tridium:niagara:4.7.109.20:*:*:*:*:*:*:*
4.7.110.32CPE matchmatch criteria
cpe:2.3:a:tridium:niagara:4.7.110.32:*:*:*:*:*:*:*
4.8.0.110CPE matchmatch criteria
cpe:2.3:a:tridium:niagara:4.8.0.110:*:*:*:*:*:*:*
2.4.31CPE matchmatch criteria
cpe:2.3:a:tridium:niagara_enterprise_security:2.4.31:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.3MEDIUM

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
2.8
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.42%
Probability of exploitation in next 30 days
EPSS Percentile
34.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0042 is in the 52nd percentile among its peer group of 1,802 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (6)

apachepatch availablevia llm_extracted
dogukanurkerpatch availablevia llm_extracted
View patch
hppatch availablevia llm_extracted
View patch
kenticopatch availablevia llm_extracted
View patch
kongpatch availablevia llm_extracted
View patch
bentomlvendor investigatingvia llm_extracted

Vendor Advisories (6)

apachellm-apache-1fb4d6a02277dd37MEDIUM

Niagara TLS Timeout Vulnerability

Jul 28, 2020
hpllm-hp-fbb38a9996f959b2MEDIUM

Niagara TLS Timeout Vulnerability

Jul 28, 2020
dogukanurkerllm-dogukanurker-24258b1cf355473eMEDIUM

Niagara TLS Timeout Vulnerability

Jul 28, 2020
kenticollm-kentico-a4def3f4dfff0e5bMEDIUM

Niagara TLS Timeout Vulnerability

Jul 28, 2020
kongllm-kong-eaa1cf9116a926a0MEDIUM

Niagara TLS Timeout Vulnerability

Jul 28, 2020
bentomlllm-bentoml-c860ccd9bf2da972MEDIUM

Niagara TLS Timeout Vulnerability

Jul 28, 2020

References

us-cert.cisa.gov / ics/advisories/icsa-20-224-03
Third Party AdvisoryUS Government Resource