How severe is CVE-2020-14483?

CVE-2020-14483 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2020-14483 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-14483?

CVE-2020-14483 primarily affects Tridium Niagara. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-14483?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-14483 published?

CVE-2020-14483 was published on 2020-08-13 and last updated on 2026-06-17.

CVE-2020-14483

CVE-2020-14483 is a medium-severity vulnerability in Tridium Niagara with a CVSS 3.x base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-1088.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 3.3
EPSS exploit prediction: 0% (34th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-1088
Affected product: Tridium Niagara
Published: 2020-08-13
Last modified: 2026-06-17

Description

A timeout during a TLS handshake can result in the connection failing to terminate. This can result in a Niagara thread hanging and requires a manual restart of Niagara (Versions 4.6.96.28, 4.7.109.20, 4.7.110.32, 4.8.0.110) and Niagara Enterprise Security (Versions 2.4.31, 2.4.45, 4.8.0.35) to correct.

Frequently asked questions

What is CVE-2020-14483?: A timeout during a TLS handshake can result in the connection failing to terminate. This can result in a Niagara thread hanging and requires a manual restart of Niagara (Versions 4.6.96.28, 4.7.109.20, 4.7.110.32, 4.8.0.110) and Niagara Enterprise Security (Versions 2.4.31, 2.4.45, 4.8.0.35) to correct.
How severe is CVE-2020-14483?: CVE-2020-14483 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2020-14483 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-14483?: CVE-2020-14483 primarily affects Tridium Niagara. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-14483?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-14483 published?: CVE-2020-14483 was published on 2020-08-13 and last updated on 2026-06-17.

References

https://us-cert.cisa.gov/ics/advisories/icsa-20-224-03

Affected products (7)

cpe:2.3:a:tridium:niagara:4.6.96.28:*:*:*:*:*:*:*
cpe:2.3:a:tridium:niagara:4.7.109.20:*:*:*:*:*:*:*
cpe:2.3:a:tridium:niagara:4.7.110.32:*:*:*:*:*:*:*
cpe:2.3:a:tridium:niagara:4.8.0.110:*:*:*:*:*:*:*
cpe:2.3:a:tridium:niagara_enterprise_security:2.4.31:*:*:*:*:*:*:*
cpe:2.3:a:tridium:niagara_enterprise_security:2.4.45:*:*:*:*:*:*:*
cpe:2.3:a:tridium:niagara_enterprise_security:4.8.0.35:*:*:*:*:*:*:*

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