CVE-2025-26336: chassis Stack Overflow — Fix

Description

Dell Chassis Management Controller Firmware for Dell PowerEdge FX2, version(s) prior to 2.40.200.202101130302, and Dell Chassis Management Controller Firmware for Dell PowerEdge VRTX version(s) prior to 3.41.200.202209300499, contain(s) a Stack-based Buffer Overflow vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to Remote execution.

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CVSS v3.1 Score

8.3

HIGH

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

Weakness Type (CWE)

CWE-121 CWE-121

CWE-787 Out-of-bounds Write

Affected Products

Vendor	Product	Versions
dell	chassis_management_controller_for_poweredge_fx2_firmware	< 2.40.200.202101130302
dell	chassis_management_controller_for_poweredge_fx2	All
dell	chassis_management_controller_for_poweredge_vrtx_firmware	< 3.41.200.202209300499
dell	chassis_management_controller_for_poweredge_vrtx	All

References

Advisories & Patches

https://www.dell.com/support/kbdoc/en-us/000297463/dsa-2025-123-security-update-for-dell-chassis-management-controller-firmware-for-dell-poweredge-fx2-and-vrtx-vulnerabilities

Frequently Asked Questions

What is CVE-2025-26336? +

Dell Chassis Management Controller Firmware for Dell PowerEdge FX2, version(s) prior to 2.40.200.202101130302, and Dell Chassis Management Controller Firmware for Dell PowerEdge VRTX version(s) prior to 3.41.200.202209300499, contain(s) a Stack-based Buffer Overflow vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to Remote execution. It has a CVSS v3.1 base score of 8.3 (HIGH).

How severe is CVE-2025-26336? +

CVE-2025-26336 has a CVSS v3.1 score of 8.3 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-26336? +

CVE-2025-26336 affects products from dell, specifically: chassis_management_controller_for_poweredge_fx2, chassis_management_controller_for_poweredge_fx2_firmware, chassis_management_controller_for_poweredge_vrtx, chassis_management_controller_for_poweredge_vrtx_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-26336? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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