CVE-2026-18448
Leak SMM RAM from the kernel (Simply TSA after an SMI)
Description
EDK2 contains a vulnerability in BIOS where a privileged attacker may cause “Exposure of Sensitive Information during Transient Execution” by local access. Successful exploitation of this vulnerability may result in disclosure of SMRAM contents. It could also impact Confidentiality.
INFO
Published Date :
Nov. 10, 2026, 6:39 p.m.
Last Modified :
Nov. 10, 2026, 6:39 p.m.
Remotely Exploit :
No
Source :
vulncheck-cvelist-v5
Solution
- Apply EDK2 firmware updates.
- Restrict privileged local access.
- Review system memory access controls.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-18448.
| URL | Resource |
|---|---|
| https://github.com/tianocore/edk2/security/advisories/GHSA-7v86-66vf-h88j |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-18448 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-18448
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-18448 vulnerability anywhere in the article.