What is CVE-2024-3596?

CVE-2024-3596 is a critical-severity vulnerability in Broadcom Brocade Sannav, classified under Improper Validation of Integrity Check Value. CVSS score: 9.0/10. Published 2024-07-09.

How severe is CVE-2024-3596?

Critical severity. CVSS v3 base score is 9.0 out of 10.

Is CVE-2024-3596 known to be exploited?

8 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Broadcom Brocade Sannav

CVE-2024-3596

RADIUS Protocol under RFC 2865 is susceptible to forgery attacks by a local attacker who can modify any valid Response (Access-Accept, Access-Reject, or Access-Challenge) to any other response using a chosen-prefix collision attack against MD5 Response Authenticator signature.

Published 2024-07-09 · last modified 2026-10-15.

CVSS v3 metric

CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.149 (96.7th percentile), scored 2026-10-19.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 96.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.149 · newest: 0.149 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

datatracker.ietf.org/doc/html/rfc2865 (Technical Description)
datatracker.ietf.org/doc/draft-ietf-radext-deprecating-radius/ (Technical Description)
networkradius.com/assets/pdf/radius_and_md5_collisions.pdf (Third Party Advisory)
www.blastradius.fail/ (Technical Description)
www.openwall.com/lists/oss-security/2024/07/09/4 (Mailing List)
psirt.global.sonicwall.com/vuln-detail/SNWLID-2024-0014 (Third Party Advisory)
cert-portal.siemens.com/productcert/html/ssa-794185.html (vendor-advisory)
cert-portal.siemens.com/productcert/html/ssa-723487.html (vendor-advisory)
af854a3a-2127-422b-91ae-364da2661108 (Third Party Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Third Party Advisory)

Frequently asked questions

What is CVE-2024-3596?: CVE-2024-3596 is a critical-severity vulnerability in Broadcom Brocade Sannav, classified under Improper Validation of Integrity Check Value. CVSS score: 9.0/10. Published 2024-07-09.
How severe is CVE-2024-3596?: Critical severity. CVSS v3 base score is 9.0 out of 10.
Is CVE-2024-3596 known to be exploited?: 8 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.