PatchTheCVECVE-2026-24664: The Open eClass platform (formerly known as GUnet eClass) is a complete course management system
CVE-2026-24664 is a medium-severity flaw (CVSS 5.3) affecting open eclass platform. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- Public exploit reference
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 5.3 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.3% (top 79%) |
| CISA exploited list | No |
| Weakness | CWE-204 |
| Published | 2026-02-03 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-24664?
open eclass platform: upgrade to 4.2. Exact commands for each OS are on this page.
Is CVE-2026-24664 being exploited?
CVE-2026-24664 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-24664 affect?
CVE-2026-24664 affects open eclass platform. Severity is medium (CVSS 5.3). 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 diffe
How urgent is CVE-2026-24664?
Priority 34/100. Public exploit reference; Remotely exploitable, no login, no user action
Related CVEs
- CVE-2026-24774 MEDIUM 4.3 UPGRADE The Open eClass platform (formerly known as GUnet eClass) is a complete course management system
- CVE-2026-24773 HIGH 7.5 UPGRADE The Open eClass platform (formerly known as GUnet eClass) is a complete course management system
- CVE-2026-24674 MEDIUM 4.7 UPGRADE The Open eClass platform (formerly known as GUnet eClass) is a complete course management system
- CVE-2026-24673 MEDIUM 4.3 UPGRADE The Open eClass platform (formerly known as GUnet eClass) is a complete course management system
- CVE-2026-24672 HIGH 7.3 UPGRADE The Open eClass platform (formerly known as GUnet eClass) is a complete course management system