#VU105945 Stack-based buffer overflow in Chassis Management Controller (CMC) Firmware - CVE-2025-26336

Vulnerability identifier: #VU105945

Vulnerability risk: Medium

CVSSv4.0: 2.2 [CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:H/VI:L/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2025-26336

CWE-ID: CWE-121

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Chassis Management Controller (CMC) Firmware
Hardware solutions / Firmware

Vendor: Dell

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error. A remote attacker can trick the victim into performing unspecified actions on the system to trigger a stack-based buffer overflow and execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Chassis Management Controller (CMC) Firmware: before 2.41.200.202503050519

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External links
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

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.