How severe is CVE-2026-24664?

CVE-2026-24664 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-24664 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-24664?

CVE-2026-24664 affects Gunet Open Eclass Platform. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-24664?

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

Does CVE-2026-24664 have an EU (EUVD) identifier?

Yes. CVE-2026-24664 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5240.

When was CVE-2026-24664 published?

CVE-2026-24664 was published on 2026-02-03 and last updated on 2026-06-17.

CVE-2026-24664

CVE-2026-24664 is a medium-severity vulnerability in Gunet Open Eclass Platform with a CVSS 3.x base score of 5.3. 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-204.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (16th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-5240
Weakness: CWE-204
Affected product: Gunet Open Eclass Platform
Published: 2026-02-03
Last modified: 2026-06-17

Description

The Open eClass platform (formerly known as GUnet eClass) is a complete course management system. Prior to version 4.2, a username enumeration vulnerability allows unauthenticated attackers to identify valid user accounts by analyzing differences in the login response behavior. This issue has been patched in version 4.2.

Frequently asked questions

What is CVE-2026-24664?: The Open eClass platform (formerly known as GUnet eClass) is a complete course management system. Prior to version 4.2, a username enumeration vulnerability allows unauthenticated attackers to identify valid user accounts by analyzing differences in the login response behavior. This issue has been patched in version 4.2.
How severe is CVE-2026-24664?: CVE-2026-24664 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-24664 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-24664?: CVE-2026-24664 affects Gunet Open Eclass Platform. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-24664?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-24664 have an EU (EUVD) identifier?: Yes. CVE-2026-24664 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5240.
When was CVE-2026-24664 published?: CVE-2026-24664 was published on 2026-02-03 and last updated on 2026-06-17.

References

https://github.com/gunet/openeclass/security/advisories/GHSA-c3wq-m629-5h2j

Affected products (1)

cpe:2.3:a:gunet:open_eclass_platform:*:*:*:*:*:*:*:*

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