CVE-2025-63212

Name: CVE-2025-63212
Creator: NVD / NIST
Published: 2025-11-19T20:15:53.38+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.31%

Last modified Jun 17, 2026

CVE-2025-63212 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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. EPSS estimates a 0.31% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

0.31%

23.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions
Gatesair	Flexiva Lx100 Firmware	1.0.13
Gatesair	Flexiva Lx100 Firmware	2.0
Gatesair	Flexiva Lx300 Firmware	1.0.13
Gatesair	Flexiva Lx300 Firmware	2.0
Gatesair	Flexiva Lx600 Firmware	1.0.13
Gatesair	Flexiva Lx600 Firmware	2.0
Gatesair	Flexiva Lx1000 Firmware	1.0.13
Gatesair	Flexiva Lx1000 Firmware	2.0

References

https://github.com/shiky8/my--cve-vulnerability-research/tree/main/CVE-2025-63212%20_GatesAir%20Flexiva-LX%20Series%20_%20Session%20HijackingExploit, Third Party Advisory
https://www.gatesair.com/Product

Timeline

Published: Nov 19, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-63212?

How severe is CVE-2025-63212?

CVE-2025-63212 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.31% probability of exploitation in the next 30 days.

How do I fix CVE-2025-63212?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-63212?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST