How severe is CVE-2023-4486?

CVE-2023-4486 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-4486 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-4486?

CVE-2023-4486 primarily affects Johnsoncontrols Nae55 Firmware. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-4486?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-4486 published?

CVE-2023-4486 was published on 2023-12-07 and last updated on 2026-06-17.

CVE-2023-4486

CVE-2023-4486 is a high-severity vulnerability in Johnsoncontrols Nae55 Firmware with a CVSS 3.x base score of 7.5. 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-770.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-770
Affected product: Johnsoncontrols Nae55 Firmware
Published: 2023-12-07
Last modified: 2026-06-17

Description

Under certain circumstances, invalid authentication credentials could be sent to the login endpoint of Johnson Controls Metasys NAE55, SNE, and SNC engines prior to versions 11.0.6 and 12.0.4 and Facility Explorer F4-SNC engines prior to versions 11.0.6 and 12.0.4 to cause denial-of-service.

Frequently asked questions

What is CVE-2023-4486?: Under certain circumstances, invalid authentication credentials could be sent to the login endpoint of Johnson Controls Metasys NAE55, SNE, and SNC engines prior to versions 11.0.6 and 12.0.4 and Facility Explorer F4-SNC engines prior to versions 11.0.6 and 12.0.4 to cause denial-of-service.
How severe is CVE-2023-4486?: CVE-2023-4486 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-4486 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-4486?: CVE-2023-4486 primarily affects Johnsoncontrols Nae55 Firmware. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-4486?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-4486 published?: CVE-2023-4486 was published on 2023-12-07 and last updated on 2026-06-17.

References

Affected products (10)

cpe:2.3:o:johnsoncontrols:nae55_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:johnsoncontrols:sne22000_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:johnsoncontrols:sne11000_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:johnsoncontrols:sne10500_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:johnsoncontrols:sne110l0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:johnsoncontrols:snc25150-0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:johnsoncontrols:snc25150-04_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:johnsoncontrols:snc16120-0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:johnsoncontrols:snc16120-04_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:johnsoncontrols:f4-snc_firmware:*:*:*:*:*:*:*:*

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