How severe is CVE-2026-2339?

CVE-2026-2339 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-2339 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-2339?

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-2026-2339 have an EU (EUVD) identifier?

Yes. CVE-2026-2339 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10494.

When was CVE-2026-2339 published?

CVE-2026-2339 was published on 2026-03-10 and last updated on 2026-06-17.

CVE-2026-2339

CVE-2026-2339 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-306.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-10494
Weakness: CWE-306
Published: 2026-03-10
Last modified: 2026-06-17

Description

Missing Authentication for Critical Function vulnerability in TUBITAK BILGEM Software Technologies Research Institute Liderahenk allows Remote Code Inclusion, Privilege Abuse, Command Injection. This issue affects Liderahenk: before 3.5.1.

Frequently asked questions

What is CVE-2026-2339?: Missing Authentication for Critical Function vulnerability in TUBITAK BILGEM Software Technologies Research Institute Liderahenk allows Remote Code Inclusion, Privilege Abuse, Command Injection. This issue affects Liderahenk: before 3.5.1.
How severe is CVE-2026-2339?: CVE-2026-2339 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-2339 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-2339?: 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-2026-2339 have an EU (EUVD) identifier?: Yes. CVE-2026-2339 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10494.
When was CVE-2026-2339 published?: CVE-2026-2339 was published on 2026-03-10 and last updated on 2026-06-17.

References

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

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CVE-2026-50242 — Critical (CVSS 10.0): In JetBrains Hub before 2026.1.13757, 2025.3.148033, 2025.2.148048, 2025.1.148120, 2024.3.148430, 2024.2.148429…
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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