How severe is CVE-2025-61782?

CVE-2025-61782 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-61782 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.

What products are affected by CVE-2025-61782?

CVE-2025-61782 affects Citeum Opencti. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-61782?

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

Does CVE-2025-61782 have an EU (EUVD) identifier?

Yes. CVE-2025-61782 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-206265.

When was CVE-2025-61782 published?

CVE-2025-61782 was published on 2026-01-07 and last updated on 2026-06-17.

CVE-2025-61782

CVE-2025-61782 is a medium-severity vulnerability in Citeum Opencti with a CVSS 3.x base score of 5.4. 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-601.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
EPSS exploit prediction: 0% (12th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-206265
Weakness: CWE-601
Affected product: Citeum Opencti
Published: 2026-01-07
Last modified: 2026-06-17

Description

OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to version 6.8.3, an open redirect vulnerability exists in the OpenCTI platform's SAML authentication endpoint (/auth/saml/callback). By manipulating the RelayState parameter, an attacker can force the server to issue a 302 redirect to any external URL, enabling phishing, credential theft, and arbitrary site redirection. This issue has been patched in version 6.8.3.

Frequently asked questions

What is CVE-2025-61782?: OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to version 6.8.3, an open redirect vulnerability exists in the OpenCTI platform's SAML authentication endpoint (/auth/saml/callback). By manipulating the RelayState parameter, an attacker can force the server to issue a 302 redirect to any external URL, enabling phishing, credential theft, and arbitrary site redirection. This issue has been patched in version 6.8.3.
How severe is CVE-2025-61782?: CVE-2025-61782 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-61782 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.
What products are affected by CVE-2025-61782?: CVE-2025-61782 affects Citeum Opencti. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-61782?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-61782 have an EU (EUVD) identifier?: Yes. CVE-2025-61782 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-206265.
When was CVE-2025-61782 published?: CVE-2025-61782 was published on 2026-01-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:citeum:opencti:*:*:*:*:*:*:*:*

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