CVE-2025-26336 Memory corruption in Dell Chassis Management Controller (CMC) for Dell PowerEdge FX2

High 8.3 Published Updated

An unauthenticated remote attacker can exploit a stack-based buffer overflow in Dell CMC firmware to achieve remote code execution.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2025-26336?

CVE-2025-26336 is a high-severity memory corruption vulnerability in Dell Chassis Management Controller (CMC) for Dell PowerEdge FX2, published on 21 Mar 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official 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.

Weakness: CWE-787, CWE-121

Which versions are affected by CVE-2025-26336?

It affects 2 products.

Products include Dell Chassis Management Controller for Poweredge Fx2 Firmware, Dell Chassis Management Controller for Poweredge Vrtx Firmware.

How do I fix CVE-2025-26336?

No fix has been published for CVE-2025-26336 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2025-26336 being exploited?

There is no known exploitation of CVE-2025-26336 in the wild and no public exploit code.

Sources

Also known as GHSA-7hqh-xh4r-x7q4.

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