How severe is CVE-2025-5261?

CVE-2025-5261 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2025-5261 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-5261?

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-2025-5261 have an EU (EUVD) identifier?

Yes. CVE-2025-5261 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25270.

When was CVE-2025-5261 published?

CVE-2025-5261 was published on 2025-08-20 and last updated on 2026-06-17.

CVE-2025-5261

CVE-2025-5261 is a high-severity vulnerability with a CVSS 3.x base score of 7.5. 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-639.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-25270
Weakness: CWE-639
Published: 2025-08-20
Last modified: 2026-06-17

Description

Authorization Bypass Through User-Controlled Key vulnerability in Pik Online Yazılım Çözümleri A.Ş. Pik Online allows Exploitation of Trusted Identifiers. This issue affects Pik Online: before 3.1.5.

Frequently asked questions

What is CVE-2025-5261?: Authorization Bypass Through User-Controlled Key vulnerability in Pik Online Yazılım Çözümleri A.Ş. Pik Online allows Exploitation of Trusted Identifiers. This issue affects Pik Online: before 3.1.5.
How severe is CVE-2025-5261?: CVE-2025-5261 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2025-5261 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-5261?: 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-2025-5261 have an EU (EUVD) identifier?: Yes. CVE-2025-5261 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25270.
When was CVE-2025-5261 published?: CVE-2025-5261 was published on 2025-08-20 and last updated on 2026-06-17.

References

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