Executive Summary

Informations
Name CVE-2025-21998 First vendor Publication 2025-04-03
Vendor Cve Last vendor Modification 2025-04-10

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 4.7
Base Score 4.7 Environmental Score 4.7
impact SubScore 3.6 Temporal Score 4.7
Exploitabality Sub Score 1
 
Attack Vector Local Attack Complexity High
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

In the Linux kernel, the following vulnerability has been resolved:

firmware: qcom: uefisecapp: fix efivars registration race

Since the conversion to using the TZ allocator, the efivars service is registered before the memory pool has been allocated, something which can lead to a NULL-pointer dereference in case of a racing EFI variable access.

Make sure that all resources have been set up before registering the efivars.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-21998

CWE : Common Weakness Enumeration

% Id Name
50 % CWE-476 NULL Pointer Dereference
50 % CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 8
Os 3718

Sources (Detail)

https://git.kernel.org/stable/c/c4e37b381a7a243c298a4858fc0a5a74e737c79a
https://git.kernel.org/stable/c/da8d493a80993972c427002684d0742560f3be4a
https://git.kernel.org/stable/c/f15a2b96a0e41c426c63a932d0e63cde7b9784aa
Source Url

Alert History

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Date Informations
2025-06-26 02:41:16
  • Multiple Updates
2025-06-25 12:38:21
  • Multiple Updates
2025-06-24 02:45:42
  • Multiple Updates
2025-05-27 02:54:14
  • First insertion