How severe is CVE-2025-40838?

CVE-2025-40838 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 high, integrity none, and availability none.

Is CVE-2025-40838 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-40838?

CVE-2025-40838 affects Ericsson Indoor Connect 8855 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-40838?

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.

Does CVE-2025-40838 have an EU (EUVD) identifier?

Yes. CVE-2025-40838 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-31096.

When was CVE-2025-40838 published?

CVE-2025-40838 was published on 2025-09-25 and last updated on 2026-06-17.

CVE-2025-40838

CVE-2025-40838 is a high-severity vulnerability in Ericsson Indoor Connect 8855 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-522.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 5.1
EPSS exploit prediction: 0% (27th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-31096
Weakness: CWE-522
Affected product: Ericsson Indoor Connect 8855 Firmware
Published: 2025-09-25
Last modified: 2026-06-17

Description

Ericsson Indoor Connect 8855 contains a vulnerability where server-side security can be bypassed in the client which if exploited can lead to unauthorized disclosure of certain information.

Frequently asked questions

What is CVE-2025-40838?: Ericsson Indoor Connect 8855 contains a vulnerability where server-side security can be bypassed in the client which if exploited can lead to unauthorized disclosure of certain information.
How severe is CVE-2025-40838?: CVE-2025-40838 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 high, integrity none, and availability none.
Is CVE-2025-40838 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-40838?: CVE-2025-40838 affects Ericsson Indoor Connect 8855 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-40838?: 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.
Does CVE-2025-40838 have an EU (EUVD) identifier?: Yes. CVE-2025-40838 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-31096.
When was CVE-2025-40838 published?: CVE-2025-40838 was published on 2025-09-25 and last updated on 2026-06-17.

References

https://www.ericsson.com/en/about-us/security/psirt/e2025-09-25

Affected products (1)

cpe:2.3:o:ericsson:indoor_connect_8855_firmware:*:*:*:*:*:*:*:*

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