How severe is CVE-2023-39909?

CVE-2023-39909 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-39909 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-39909?

CVE-2023-39909 affects Ericsson Network Manager. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-39909?

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-2023-39909 published?

CVE-2023-39909 was published on 2023-12-07 and last updated on 2026-06-17.

CVE-2023-39909

CVE-2023-39909 is a high-severity vulnerability in Ericsson Network Manager with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Ericsson Network Manager
Published: 2023-12-07
Last modified: 2026-06-17

Description

Ericsson Network Manager before 23.2 mishandles Access Control and thus unauthenticated low-privilege users can access the NCM application.

Frequently asked questions

What is CVE-2023-39909?: Ericsson Network Manager before 23.2 mishandles Access Control and thus unauthenticated low-privilege users can access the NCM application.
How severe is CVE-2023-39909?: CVE-2023-39909 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-39909 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-39909?: CVE-2023-39909 affects Ericsson Network Manager. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-39909?: 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-2023-39909 published?: CVE-2023-39909 was published on 2023-12-07 and last updated on 2026-06-17.

References

https://www.gruppotim.it/it/footer/red-team.html

Affected products (1)

cpe:2.3:a:ericsson:network_manager:*:*:*:*:*:*:*:*

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