Intel Slim Bootloader out-of-bounds write

Summaryinfo

A vulnerability was found in Intel Slim Bootloader and classified as problematic. This impacts an unknown function. Executing a manipulation can lead to out-of-bounds write. This vulnerability is tracked as CVE-2026-25194. The attack is restricted to local execution. No exploit exists.

Detailsinfo

A vulnerability was found in Intel Slim Bootloader (the affected version is unknown). It has been declared as problematic. This vulnerability affects an unknown code. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect availability. CVE summarizes:

Out-of-bounds write in the firmware for the Intel(R) Slim Bootloader may allow a denial of service. System software adversary with a privileged user combined with a low complexity attack may enable denial of service. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (low) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.

The advisory is shared for download at intel.com. This vulnerability was named CVE-2026-25194 since 03/13/2026. The exploitation appears to be easy. The attack needs to be approached locally. Additional levels of successful authentication are required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 08/11/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• Intel

Name

• Slim Bootloader

License

• commercial

Website

• Vendor: https://www.intel.com/

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