How severe is CVE-2025-5087?

CVE-2025-5087 has a CVSS 4.0 base score of 6.0, rated medium severity.

Is CVE-2025-5087 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-5087?

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

Does CVE-2025-5087 have an EU (EUVD) identifier?

Yes. CVE-2025-5087 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-19055.

When was CVE-2025-5087 published?

CVE-2025-5087 was published on 2025-06-24 and last updated on 2026-06-17.

CVE-2025-5087

CVE-2025-5087 is a medium-severity vulnerability with a CVSS 4.0 base score of 6.0. 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-319.

Key facts

Severity: Medium (CVSS 4.0 base score 6.0)
EPSS exploit prediction: 0% (12th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-19055
Weakness: CWE-319
Published: 2025-06-24
Last modified: 2026-06-17

Description

Kaleris NAVIS N4 ULC (Ultra Light Client) communicates insecurely using zlib-compressed data over HTTP. An attacker capable of observing network traffic between Ultra Light Clients and N4 servers can extract sensitive information, including plaintext credentials.

Frequently asked questions

What is CVE-2025-5087?: Kaleris NAVIS N4 ULC (Ultra Light Client) communicates insecurely using zlib-compressed data over HTTP. An attacker capable of observing network traffic between Ultra Light Clients and N4 servers can extract sensitive information, including plaintext credentials.
How severe is CVE-2025-5087?: CVE-2025-5087 has a CVSS 4.0 base score of 6.0, rated medium severity.
Is CVE-2025-5087 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-5087?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-5087 have an EU (EUVD) identifier?: Yes. CVE-2025-5087 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-19055.
When was CVE-2025-5087 published?: CVE-2025-5087 was published on 2025-06-24 and last updated on 2026-06-17.

References

https://www.cisa.gov/news-events/ics-advisories/icsa-25-175-01

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