How severe is CVE-2025-63212?

CVE-2025-63212 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2025-63212 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-63212?

CVE-2025-63212 primarily affects Gatesair Flexiva Lx100 Firmware. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-63212?

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

Does CVE-2025-63212 have an EU (EUVD) identifier?

Yes. CVE-2025-63212 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-198171.

When was CVE-2025-63212 published?

CVE-2025-63212 was published on 2025-11-19 and last updated on 2026-06-17.

CVE-2025-63212

CVE-2025-63212 is a medium-severity vulnerability in Gatesair Flexiva Lx100 Firmware with a CVSS 3.x base score of 6.5. 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-200.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-198171
Weakness: CWE-200
Affected product: Gatesair Flexiva Lx100 Firmware
Published: 2025-11-19
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2025-63212?: 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.
How severe is CVE-2025-63212?: CVE-2025-63212 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2025-63212 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-63212?: CVE-2025-63212 primarily affects Gatesair Flexiva Lx100 Firmware. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-63212?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-63212 have an EU (EUVD) identifier?: Yes. CVE-2025-63212 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-198171.
When was CVE-2025-63212 published?: CVE-2025-63212 was published on 2025-11-19 and last updated on 2026-06-17.

References

Affected products (8)

cpe:2.3:o:gatesair:flexiva_lx100_firmware:1.0.13:*:*:*:*:*:*:*
cpe:2.3:o:gatesair:flexiva_lx100_firmware:2.0:*:*:*:*:*:*:*
cpe:2.3:o:gatesair:flexiva_lx300_firmware:1.0.13:*:*:*:*:*:*:*
cpe:2.3:o:gatesair:flexiva_lx300_firmware:2.0:*:*:*:*:*:*:*
cpe:2.3:o:gatesair:flexiva_lx600_firmware:1.0.13:*:*:*:*:*:*:*
cpe:2.3:o:gatesair:flexiva_lx600_firmware:2.0:*:*:*:*:*:*:*
cpe:2.3:o:gatesair:flexiva_lx1000_firmware:1.0.13:*:*:*:*:*:*:*
cpe:2.3:o:gatesair:flexiva_lx1000_firmware:2.0:*:*:*:*:*:*:*

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