CVE-2026-59042
KVM Memory Management Out-of-Bounds Write Privilege Escalation
Description
In __pkvm_pages_to_ppages of mmu.c, there is a possible out-of-bounds write due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
INFO
Published Date :
Nov. 2, 2026, 8:17 p.m.
Last Modified :
Nov. 2, 2026, 8:17 p.m.
Remotely Exploit :
No
Source :
[email protected]
Solution
- Review and patch the __pkvm_pages_to_ppages function in mmu.c.
- Implement proper locking mechanisms to prevent race conditions.
- Test thoroughly for correct memory access synchronization.
- Apply the updated code to the affected system.
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-2026-59042.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-59042 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-2026-59042
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-2026-59042 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-59042 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Nov. 02, 2026
Action Type Old Value New Value Added Description In __pkvm_pages_to_ppages of mmu.c, there is a possible out-of-bounds write due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/59xxx/CVE-2026-59042.json">CVE-2026-59042</a> Added Reference https://android.googlesource.com/kernel/common/+/1569a00286640e452ce917ee8b3cec04c5cc3715 Added Reference https://android.googlesource.com/kernel/common/+/382cffbd3842b64260993d2438926a9f2a0a447e Added Reference https://source.android.com/docs/security/bulletin/2026/2026-11-01