CRITICAL

CVE-2024-48849

Q: What is CVE-2024-48849?

Missing Origin Validation in WebSockets vulnerability in FLXEON. Session management was not sufficient to prevent unauthorized HTTPS requests. This issue affects FLXEON: through <= 9.3.4.

Q: Is CVE-2024-48849 actively exploited?

Active exploitation of CVE-2024-48849 has not been confirmed. Its EPSS score was 0.9% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2024-48849?

CVE-2024-48849 has a CVSS v3 base score of 9.4 (CRITICAL severity).

CVSS v3

9.4

CRITICAL

EPSS Score

0.9 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

ICSA-25-051-02 CISA4 products fixed · 4 known affected
ABB FLXEON Controllers
FBXi Firmware Version <= 9.3.4 · FBVi Firmware Version <= 9.3.4 · FBTi Firmware Version <= 9.3.4

Full record on NVD

Description

Missing Origin Validation in WebSockets vulnerability in FLXEON. Session management was not sufficient to prevent unauthorized HTTPS requests. This issue affects FLXEON: through <= 9.3.4.

Technical details

Published: 2025-01-29
Exploit-DB: EDB-52184

Frequently asked questions

What is CVE-2024-48849?

Missing Origin Validation in WebSockets vulnerability in FLXEON. Session management was not sufficient to prevent unauthorized HTTPS requests. This issue affects FLXEON: through <= 9.3.4.

Is CVE-2024-48849 actively exploited?

Active exploitation of CVE-2024-48849 has not been confirmed. Its EPSS score was 0.9% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2024-48849?

CVE-2024-48849 has a CVSS v3 base score of 9.4 (CRITICAL severity).

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