How severe is CVE-2024-1509?

CVE-2024-1509 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2024-1509 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-1509?

CVE-2024-1509 affects Broadcom Brocade Active Support Connectivity Gateway. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-1509?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2024-1509 have an EU (EUVD) identifier?

Yes. CVE-2024-1509 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-17257.

When was CVE-2024-1509 published?

CVE-2024-1509 was published on 2025-02-28 and last updated on 2026-06-17.

CVE-2024-1509

CVE-2024-1509 is a critical-severity vulnerability in Broadcom Brocade Active Support Connectivity Gateway with a CVSS 3.x base score of 9.1. 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-523.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
CVSS v4: 7.6
EPSS exploit prediction: 0% (26th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-17257
Weakness: CWE-523
Affected product: Broadcom Brocade Active Support Connectivity Gateway
Published: 2025-02-28
Last modified: 2026-06-17

Description

Brocade ASCG before 3.2.0 Web Interface is not enforcing HSTS, as defined by RFC 6797. HSTS is an optional response header that can be configured on the server to instruct the browser to only communicate via HTTPS. The lack of HSTS allows downgrade attacks, SSL-stripping man-in-the-middle attacks, and weakens cookie-hijacking protections.

Frequently asked questions

What is CVE-2024-1509?: Brocade ASCG before 3.2.0 Web Interface is not enforcing HSTS, as defined by RFC 6797. HSTS is an optional response header that can be configured on the server to instruct the browser to only communicate via HTTPS. The lack of HSTS allows downgrade attacks, SSL-stripping man-in-the-middle attacks, and weakens cookie-hijacking protections.
How severe is CVE-2024-1509?: CVE-2024-1509 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2024-1509 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-1509?: CVE-2024-1509 affects Broadcom Brocade Active Support Connectivity Gateway. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-1509?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2024-1509 have an EU (EUVD) identifier?: Yes. CVE-2024-1509 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-17257.
When was CVE-2024-1509 published?: CVE-2024-1509 was published on 2025-02-28 and last updated on 2026-06-17.

References

https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/25428

Affected products (1)

cpe:2.3:a:broadcom:brocade_active_support_connectivity_gateway:*:*:*:*:*:*:*:*

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