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CVE-2025-36553: Dell ControlVault3 CvManager buffer overflow vulnerability

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-11-17 · updated 2026-10-18
• Weakness: CWE-120

Description

A buffer overflow vulnerability exists in the CvManager functionality of Dell ControlVault3 prior to 5.15.14.19 and Dell ControlVault3 Plus prior to 6.2.36.47. A specially crafted ControlVault API call can lead to memory corruption. An attacker can issue an api call to trigger this vulnerability.

Affected products

• Broadcom BCM5820X: all versions
• Dell ControlVault3: before 5.15.14.19 — fixed in 5.15.14.19
• Dell ControlVault3 Plus: before 6.2.36.47 — fixed in 6.2.36.47

How to fix

Upgrade to a fixed version: Dell ControlVault3 5.15.14.19; Dell ControlVault3 Plus 6.2.36.47. Check the vendor advisory for mitigations.

References

• https://talosintelligence.com/vulnerability_reports/TALOS-2025-2189
• https://www.dell.com/support/kbdoc/en-us/000326061/dsa-2025-228
• https://www.talosintelligence.com/vulnerability_reports/TALOS-2025-2189

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