Is CVE-2025-34155 in the CISA KEV catalog?

No. CVE-2025-34155 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the EPSS score for CVE-2025-34155?

CVE-2025-34155 has an EPSS score of 0.65% (46th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2025-34155?

No published fix for CVE-2025-34155 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2025-34155

UNSCORED

NVD

Description

Tibbo AggreGate Network Manager < 6.40.05 contains an observable response discrepancy in its login functionality. Authentication failure messages differ based on whether a supplied username exists or not, allowing an unauthenticated remote attacker to infer valid account identifiers. This can facilitate user enumeration and increase the likelihood of targeted brute-force or credential-stuffing attacks.

CWE-204

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

CVSS v3.1 Vector

No CVSS vector data available.

Exploit Intelligence

0.65%probability of exploitation in 30 days

46thpercentile

Moderate risk: more likely to be exploited than 46% of all known CVEs.

References

Other references3

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-10-27.