7.8
HIGH CVSS 3.1
CVE-2025-21456
Microsoft Windows Kernel IOCTL Buffer Overflow
Description

Memory corruption while processing IOCTL command when multiple threads are called to map/unmap buffer concurrently.

INFO

Published Date :

Aug. 6, 2025, 8:15 a.m.

Last Modified :

Aug. 20, 2025, 7:42 p.m.

Remotely Exploit :

No

Source :

[email protected]
Affected Products

The following products are affected by CVE-2025-21456 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Qualcomm qam8295p_firmware
2 Qualcomm qca6574au_firmware
3 Qualcomm qca6696_firmware
4 Qualcomm sa6145p_firmware
5 Qualcomm sa6150p_firmware
6 Qualcomm sa6155p_firmware
7 Qualcomm sa8145p_firmware
8 Qualcomm sa8150p_firmware
9 Qualcomm sa8155p_firmware
10 Qualcomm sa8195p_firmware
11 Qualcomm sa8295p_firmware
12 Qualcomm sw5100_firmware
13 Qualcomm sw5100p_firmware
14 Qualcomm wcd9341_firmware
15 Qualcomm wcd9380_firmware
16 Qualcomm wcd9385_firmware
17 Qualcomm wcn3980_firmware
18 Qualcomm wcn3988_firmware
19 Qualcomm wsa8810_firmware
20 Qualcomm wsa8815_firmware
21 Qualcomm wsa8830_firmware
22 Qualcomm wsa8835_firmware
23 Qualcomm ar8035_firmware
24 Qualcomm qca6584au_firmware
25 Qualcomm qca6698aq_firmware
26 Qualcomm qca8081_firmware
27 Qualcomm qca8337_firmware
28 Qualcomm snapdragon_w5\+_gen_1_wearable_platform_firmware
29 Qualcomm wcd9340_firmware
30 Qualcomm wcd9370_firmware
31 Qualcomm wcn3950_firmware
32 Qualcomm wcn3660b_firmware
33 Qualcomm wcn3680b_firmware
34 Qualcomm qcs410_firmware
35 Qualcomm qcs610_firmware
36 Qualcomm qca6174a_firmware
37 Qualcomm sa8540p_firmware
38 Qualcomm sa9000p_firmware
39 Qualcomm fastconnect_6900_firmware
40 Qualcomm fastconnect_7800_firmware
41 Qualcomm snapdragon_888_5g_mobile_platform_firmware
42 Qualcomm qam8255p_firmware
43 Qualcomm qca6797aq_firmware
44 Qualcomm sa8255p_firmware
45 Qualcomm c-v2x_9150_firmware
46 Qualcomm qcc710_firmware
47 Qualcomm qam8650p_firmware
48 Qualcomm qam8775p_firmware
49 Qualcomm qcn6224_firmware
50 Qualcomm qcn6274_firmware
51 Qualcomm qfw7114_firmware
52 Qualcomm qfw7124_firmware
53 Qualcomm snapdragon_x75_5g_modem-rf_system_firmware
54 Qualcomm ar8035
55 Qualcomm qca6174a
56 Qualcomm qca6574au
57 Qualcomm qca6584au
58 Qualcomm qca6696
59 Qualcomm qcs410
60 Qualcomm qcs610
61 Qualcomm sa6145p
62 Qualcomm sa6150p
63 Qualcomm sa6155p
64 Qualcomm sa8150p
65 Qualcomm sa8155p
66 Qualcomm sa8195p
67 Qualcomm wcd9340
68 Qualcomm wcd9341
69 Qualcomm wcd9370
70 Qualcomm wcd9380
71 Qualcomm wcd9385
72 Qualcomm wcn3660b
73 Qualcomm wcn3680b
74 Qualcomm wcn3950
75 Qualcomm wcn3980
76 Qualcomm wcn3988
77 Qualcomm wsa8810
78 Qualcomm wsa8815
79 Qualcomm wsa8830
80 Qualcomm wsa8835
81 Qualcomm qca8337
82 Qualcomm qca8081
83 Qualcomm sa8775p_firmware
84 Qualcomm snapdragon_auto_5g_modem-rf_gen_2_firmware
85 Qualcomm sa8650p_firmware
86 Qualcomm sw5100
87 Qualcomm sw5100p
88 Qualcomm fastconnect_6900
89 Qualcomm sa8145p
90 Qualcomm snapdragon_w5\+_gen_1_wearable_platform
91 Qualcomm c-v2x_9150
92 Qualcomm qam8295p
93 Qualcomm sa8295p
94 Qualcomm fastconnect_7800
95 Qualcomm qam8255p
96 Qualcomm qam8775p
97 Qualcomm qca6698aq
98 Qualcomm qcc710
99 Qualcomm qcn6224
100 Qualcomm qcn6274
101 Qualcomm qfw7114
102 Qualcomm qfw7124
103 Qualcomm sa8255p
104 Qualcomm sa8775p
105 Qualcomm sa9000p
106 Qualcomm snapdragon_auto_5g_modem-rf_gen_2
107 Qualcomm snapdragon_x75_5g_modem-rf_system
108 Qualcomm qam8650p
109 Qualcomm qca6797aq
110 Qualcomm sa8540p
111 Qualcomm snapdragon_888_5g_mobile_platform
112 Qualcomm sa8650p
113 Qualcomm sa7255p_firmware
114 Qualcomm sa7255p
115 Qualcomm sa7775p_firmware
116 Qualcomm sa7775p
117 Qualcomm sa8620p_firmware
118 Qualcomm sa8620p
119 Qualcomm snapdragon_x72_5g_modem-rf_system_firmware
120 Qualcomm snapdragon_x72_5g_modem-rf_system
121 Qualcomm video_collaboration_vc1_platform_firmware
122 Qualcomm video_collaboration_vc1_platform
123 Qualcomm video_collaboration_vc3_platform_firmware
124 Qualcomm video_collaboration_vc3_platform
125 Qualcomm sa8530p_firmware
126 Qualcomm sa8530p
127 Qualcomm snapdragon_888\+_5g_mobile_platform_\(sm8350-ac\)_firmware
128 Qualcomm snapdragon_888\+_5g_mobile_platform_\(sm8350-ac\)
: Total Affected Vendor : 1 | Products : 128
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH [email protected]
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-2025-21456.

URL Resource
https://docs.qualcomm.com/product/publicresources/securitybulletin/august-2025-bulletin.html 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-2025-21456 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-2025-21456 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-2025-21456 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2025-21456 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.

  • Initial Analysis by [email protected]

    Aug. 20, 2025

    Action Type Old Value New Value
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:ar8035_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:ar8035:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:c-v2x_9150_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:c-v2x_9150:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:fastconnect_6900_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:fastconnect_6900:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:fastconnect_7800_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:fastconnect_7800:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qam8255p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qam8255p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qam8295p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qam8295p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qam8650p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qam8650p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qam8775p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qam8775p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qca6174a_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qca6174a:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qca6574au_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qca6574au:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qca6584au_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qca6584au:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qca6696_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qca6696:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qca6698aq_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qca6698aq:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qca6797aq_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qca6797aq:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qca8081_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qca8081:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qca8337_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qca8337:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qcc710_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qcc710:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qcn6224_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qcn6224:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qcn6274_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qcn6274:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qcs410_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qcs410:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qcs610_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qcs610:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qfw7114_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qfw7114:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qfw7124_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qfw7124:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:video_collaboration_vc1_platform_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:video_collaboration_vc1_platform:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:video_collaboration_vc3_platform_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:video_collaboration_vc3_platform:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sa6145p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sa6145p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sa6150p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sa6150p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sa6155p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sa6155p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sa7255p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sa7255p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sa7775p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sa7775p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sa8145p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sa8145p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sa8150p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sa8150p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sa8155p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sa8155p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sa8195p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sa8195p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sa8255p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sa8255p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sa8295p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sa8295p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sa8530p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sa8530p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sa8540p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sa8540p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sa8620p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sa8620p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sa8650p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sa8650p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sa8775p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sa8775p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sa9000p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sa9000p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:snapdragon_888_5g_mobile_platform_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:snapdragon_888_5g_mobile_platform:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:snapdragon_888+_5g_mobile_platform_(sm8350-ac)_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:snapdragon_888+_5g_mobile_platform_(sm8350-ac):-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:snapdragon_auto_5g_modem-rf_gen_2_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:snapdragon_auto_5g_modem-rf_gen_2:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:snapdragon_w5+_gen_1_wearable_platform_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:snapdragon_w5+_gen_1_wearable_platform:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:snapdragon_x72_5g_modem-rf_system_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:snapdragon_x72_5g_modem-rf_system:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:snapdragon_x75_5g_modem-rf_system_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:snapdragon_x75_5g_modem-rf_system:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sw5100_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sw5100:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sw5100p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sw5100p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wcd9340_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wcd9340:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wcd9341_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wcd9341:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wcd9370_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wcd9370:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wcd9380_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wcd9380:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wcd9385_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wcd9385:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wcn3660b_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wcn3660b:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wcn3680b_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wcn3680b:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wcn3950_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wcn3950:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wcn3980_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wcn3980:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wcn3988_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wcn3988:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wsa8810_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wsa8810:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wsa8815_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wsa8815:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wsa8830_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wsa8830:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wsa8835_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wsa8835:-:*:*:*:*:*:*:*
    Added Reference Type Qualcomm, Inc.: https://docs.qualcomm.com/product/publicresources/securitybulletin/august-2025-bulletin.html Types: Vendor Advisory
  • New CVE Received by [email protected]

    Aug. 06, 2025

    Action Type Old Value New Value
    Added Description Memory corruption while processing IOCTL command when multiple threads are called to map/unmap buffer concurrently.
    Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Added CWE CWE-416
    Added Reference https://docs.qualcomm.com/product/publicresources/securitybulletin/august-2025-bulletin.html
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 7.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact