How severe is CVE-2025-49090?

CVE-2025-49090 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability low.

Is CVE-2025-49090 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-49090?

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-2025-49090 have an EU (EUVD) identifier?

Yes. CVE-2025-49090 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-32573.

When was CVE-2025-49090 published?

CVE-2025-49090 was published on 2025-10-02 and last updated on 2026-06-17.

CVE-2025-49090

CVE-2025-49090 is a high-severity vulnerability with a CVSS 3.x base score of 7.1. 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-642.

Key facts

Severity: High (CVSS 3.x base score 7.1)
EPSS exploit prediction: 0% (34th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-32573
Weakness: CWE-642
Published: 2025-10-02
Last modified: 2026-06-17

Description

The Matrix specification before 1.16 (i.e., with a room version before 12 and State Resolution before 2.1) has deficient state resolution.

Frequently asked questions

What is CVE-2025-49090?: The Matrix specification before 1.16 (i.e., with a room version before 12 and State Resolution before 2.1) has deficient state resolution.
How severe is CVE-2025-49090?: CVE-2025-49090 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability low.
Is CVE-2025-49090 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-49090?: 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-2025-49090 have an EU (EUVD) identifier?: Yes. CVE-2025-49090 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-32573.
When was CVE-2025-49090 published?: CVE-2025-49090 was published on 2025-10-02 and last updated on 2026-06-17.

References

Other CWE-642 vulnerabilities

CVE-2018-15382 — High (CVSS 8.6): A vulnerability in Cisco HyperFlex Software could allow an unauthenticated, remote attacker to generate valid, signed…
CVE-2024-22387 — Medium (CVSS 6.8): External Control of Critical State Data (CWE-642) in the Controller 6000 and Controller 7000 diagnostic web interface…
CVE-2024-8754 — Medium (CVSS 6.4): An issue has been discovered in GitLab EE/CE affecting all versions from 16.9.7 prior to 17.1.7, 17.2 prior to 17.2.5,…
CVE-2017-0928 — Medium (CVSS 6.1): html-janitor node module suffers from an External Control of Critical State Data vulnerability via user-control of the…
CVE-2022-32859 — Medium (CVSS 5.3): A logic issue was addressed with improved state management. This issue is fixed in iOS 16. Deleted contacts may still…
CVE-2025-26787 — Medium (CVSS 4.7): An error in the SignServer container startup logic was found in Keyfactor SignServer versions prior to 7.2. The Admin…

Browse all CWE-642 vulnerabilities →