How severe is CVE-2025-8861?

CVE-2025-8861 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-8861 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-8861?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2025-8861 have an EU (EUVD) identifier?

Yes. CVE-2025-8861 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-28806.

When was CVE-2025-8861 published?

CVE-2025-8861 was published on 2025-08-29 and last updated on 2026-06-17.

CVE-2025-8861

CVE-2025-8861 is a critical-severity vulnerability with a CVSS 3.x base score of 9.8. 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-306.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 9.3
EPSS exploit prediction: 0% (39th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-28806
Weakness: CWE-306
Published: 2025-08-29
Last modified: 2026-06-17

Description

TSA developed by Changing has a Missing Authentication vulnerability, allowing unauthenticated remote attackers to read, modify, and delete database contents.

Frequently asked questions

What is CVE-2025-8861?: TSA developed by Changing has a Missing Authentication vulnerability, allowing unauthenticated remote attackers to read, modify, and delete database contents.
How severe is CVE-2025-8861?: CVE-2025-8861 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-8861 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-8861?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-8861 have an EU (EUVD) identifier?: Yes. CVE-2025-8861 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-28806.
When was CVE-2025-8861 published?: CVE-2025-8861 was published on 2025-08-29 and last updated on 2026-06-17.

References

Other CWE-306 (Missing Authentication for Critical Function) vulnerabilities

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CVE-2026-49257 — Critical (CVSS 10.0): mcp-pinot is a Python-based Model Context Protocol (MCP) server for interacting with Apache Pinot. In versions 3.0.1…
CVE-2026-46846 — Critical (CVSS 10.0): Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Security Framework).…
CVE-2026-46803 — Critical (CVSS 10.0): Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Security Framework).…
CVE-2026-46800 — Critical (CVSS 10.0): Vulnerability in the Oracle WebCenter Sites product of Oracle Fusion Middleware (component: WebCenter Sites).…

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