How severe is CVE-2025-40837?

CVE-2025-40837 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-2025-40837 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-40837?

CVE-2025-40837 affects Ericsson Indoor Connect 8855 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-40837?

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-2025-40837 have an EU (EUVD) identifier?

Yes. CVE-2025-40837 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-31097.

When was CVE-2025-40837 published?

CVE-2025-40837 was published on 2025-09-25 and last updated on 2026-06-17.

CVE-2025-40837

CVE-2025-40837 is a high-severity vulnerability in Ericsson Indoor Connect 8855 Firmware 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. The underlying weakness is classified as CWE-862.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v4: 8.7
EPSS exploit prediction: 0% (20th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-31097
Weakness: CWE-862
Affected product: Ericsson Indoor Connect 8855 Firmware
Published: 2025-09-25
Last modified: 2026-06-17

Description

Ericsson Indoor Connect 8855 contains a missing authorization vulnerability which if exploited can allow access to the system as a user with higher privileges than intended.

Frequently asked questions

What is CVE-2025-40837?: Ericsson Indoor Connect 8855 contains a missing authorization vulnerability which if exploited can allow access to the system as a user with higher privileges than intended.
How severe is CVE-2025-40837?: CVE-2025-40837 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-2025-40837 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-40837?: CVE-2025-40837 affects Ericsson Indoor Connect 8855 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-40837?: 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-2025-40837 have an EU (EUVD) identifier?: Yes. CVE-2025-40837 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-31097.
When was CVE-2025-40837 published?: CVE-2025-40837 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:*:*:*:*:*:*:*:*

More vulnerabilities in Ericsson Indoor Connect 8855 Firmware

CVE-2025-40836 — Critical (CVSS 9.8): Ericsson Indoor Connect 8855 contains an improper input validation vulnerability which if exploited can allow an…
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CVE-2025-27262 — High (CVSS 7.8): Ericsson Indoor Connect 8855 contains a command injection vulnerability which if exploited can result in an escalation…
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CVE-2025-40838 — High (CVSS 7.5): Ericsson Indoor Connect 8855 contains a vulnerability where server-side security can be bypassed in the client which if…
CVE-2025-40842 — Medium (CVSS 6.1): Ericsson Indoor Connect 8855 versions prior to 2025.Q3 contains a Cross-Site Scripting (XSS) vulnerability which, if…

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