CVE-2025-48623
QEMU PKVM Local Privilege Escalation Vulnerability
Description
In init_pkvm_hyp_vcpu of pkvm.c, there is a possible out of bounds write due to improper input validation. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
INFO
Published Date :
Dec. 8, 2025, 5:16 p.m.
Last Modified :
Dec. 8, 2025, 8:15 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Validate all inputs to init_pkvm_hyp_vcpu function.
- Correct improper input validation logic.
- Apply necessary code patches.
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-2025-48623.
| URL | Resource |
|---|---|
| https://android.googlesource.com/kernel/common/+/3b6fab0ff24f7108c71a4d9c12567455cb2a5a81 | Patch Product |
| https://android.googlesource.com/kernel/common/+/e76cff4952af4ac4652dc74ffbd134ff57c47895 | Patch Product |
| https://source.android.com/security/bulletin/2025-12-01 | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-48623 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-2025-48623
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-2025-48623 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-48623 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.
-
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Dec. 08, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-20 Added CWE CWE-787 -
Initial Analysis by [email protected]
Dec. 08, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-787 Added CPE Configuration OR *cpe:2.3:o:google:android:-:*:*:*:*:*:*:* Added Reference Type Android (associated with Google Inc. or Open Handset Alliance): https://android.googlesource.com/kernel/common/+/3b6fab0ff24f7108c71a4d9c12567455cb2a5a81 Types: Patch, Product Added Reference Type Android (associated with Google Inc. or Open Handset Alliance): https://android.googlesource.com/kernel/common/+/e76cff4952af4ac4652dc74ffbd134ff57c47895 Types: Patch, Product Added Reference Type Android (associated with Google Inc. or Open Handset Alliance): https://source.android.com/security/bulletin/2025-12-01 Types: Vendor Advisory -
New CVE Received by [email protected]
Dec. 08, 2025
Action Type Old Value New Value Added Description In init_pkvm_hyp_vcpu of pkvm.c, there is a possible out of bounds write due to improper input validation. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Added Reference https://android.googlesource.com/kernel/common/+/3b6fab0ff24f7108c71a4d9c12567455cb2a5a81 Added Reference https://android.googlesource.com/kernel/common/+/e76cff4952af4ac4652dc74ffbd134ff57c47895 Added Reference https://source.android.com/security/bulletin/2025-12-01