PatchTheCVECVE-2025-63212: GatesAir Flexiva-LX devices on firmware 1.0.13 and 2.0, including models LX100, LX300, LX600, and LX1000, expo
CVE-2025-63212 is a medium-severity flaw (CVSS 6.5) affecting flexiva lx100 firmware, flexiva lx300 firmware, flexiva lx600 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
GatesAir Flexiva-LX devices on firmware 1.0.13 and 2.0, including models LX100, LX300, LX600, and LX1000, expose sensitive session identifiers (sid) in the publicly accessible log file located at /log/Flexiva%20LX.log. An unauthenticated attacker can retrieve valid session IDs and hijack sessions without providing any credentials. This attack requires the legitimate user (admin) to have previously closed the browser window without logging out.
Why this priority
- Public exploit reference
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 6.5 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.4% (top 68%) |
| CISA exploited list | No |
| Weakness | CWE-200 |
| Published | 2025-11-19 |
| 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-2025-63212?
flexiva lx100 firmware: mitigate or apply the listed mitigation; flexiva lx300 firmware: mitigate or apply the listed mitigation; flexiva lx600 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2025-63212 being exploited?
CVE-2025-63212 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-2025-63212 affect?
CVE-2025-63212 affects flexiva lx100 firmware, flexiva lx300 firmware, flexiva lx600 firmware. Severity is medium (CVSS 6.5). GatesAir Flexiva-LX devices on firmware 1.0.13 and 2.0, including models LX100, LX300, LX600, and LX1000, expose sensitive session identifiers (sid) in the publicly accessible log file located at /log/Flexiva%20LX.log. An unauthenticated at
How urgent is CVE-2025-63212?
Priority 36/100. Public exploit reference