7.8
HIGH
CVSS 3.1
CVE-2026-21379
Buffer Over-read in Windows Compute
Overview
Description
Memory Corruption when allocating memory with sizes that exceed the maximum allowed value.
Details
INFO
Published Date :
July 6, 2026, 9:16 p.m.
Last Modified :
July 7, 2026, 4:45 p.m.
Remotely Exploit :
No
Source :
[email protected]
Impact
Affected Products
The following products are affected by CVE-2026-21379
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.
Scoring
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 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | 2cfc7d3e-20d3-47ac-8db7-1b7285aff15f | ||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
Fix memory allocation to prevent overflow when handling large input sizes.
- Validate memory allocation sizes before allocating.
- Implement checks for maximum allowed values.
- Update the memory allocation function.
- Test with edge case inputs.
References
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-2026-21379.
| URL | Resource |
|---|---|
| https://docs.qualcomm.com/product/publicresources/securitybulletin/july-2026-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-2026-21379 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-2026-21379
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-2026-21379 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-21379 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]
Jul. 07, 2026
Action Type Old Value New Value Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:aqt1000_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:aqt1000:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:cologne_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:cologne:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:fastconnect_6200_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:fastconnect_6200:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:fastconnect_6700_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:fastconnect_6700:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:fastconnect_6800_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:fastconnect_6800:-:*:*:*:*:*:*:* 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:iqx5121_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:iqx5121:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:iqx7181_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:iqx7181:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qca0000_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qca0000:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qca6391_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qca6391:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qca6420_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qca6420:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qca6430_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qca6430:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qcm5430_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qcm5430:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qcm6490_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qcm6490:-:*:*:*:*:*:*:* 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:sc8380xp_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sc8380xp:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:snapdragon_7c+_gen_3_compute_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:snapdragon_7c+_gen_3_compute:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:snapdragon_8c_compute_platform_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:snapdragon_8c_compute_platform:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:snapdragon_8c_compute_platform_(sc8180xp-ad)_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:snapdragon_8c_compute_platform_(sc8180xp-ad):-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:snapdragon_8cx_compute_platform_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:snapdragon_8cx_compute_platform:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:snapdragon_8cx_compute_platform_"poipu_pro"_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:snapdragon_8cx_compute_platform_"poipu_pro":-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:snapdragon_8cx_gen_2_5g_compute_platform_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:snapdragon_8cx_gen_2_5g_compute_platform:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:snapdragon_8cx_gen_2_5g_compute_platform_"poipu_pro"_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:snapdragon_8cx_gen_2_5g_compute_platform_"poipu_pro":-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:snapdragon_8cx_gen_3_compute_platform_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:snapdragon_8cx_gen_3_compute_platform:-:*:*:*:*:*:*:* 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:wcd9375_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wcd9375:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wcd9378c_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wcd9378c:-:*:*:*:*:*:*:* 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: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 CPE Configuration AND OR *cpe:2.3:o:qualcomm:wsa8840_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wsa8840:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wsa8845_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wsa8845:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wsa8845h_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wsa8845h:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:x2000077_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:x2000077:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:x2000086_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:x2000086:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:x2000090_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:x2000090:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:x2000092_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:x2000092:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:x2000094_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:x2000094:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:xg101002_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:xg101002:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:xg101032_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:xg101032:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:xg101039_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:xg101039:-:*:*:*:*:*:*:* Added Reference Type Qualcomm, Inc.: https://docs.qualcomm.com/product/publicresources/securitybulletin/july-2026-bulletin.html Types: Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 07, 2026
Action Type Old Value New Value Changed SSVC {'id': 'CVE-2026-21379', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-07-06T20:55:02.410730Z'} {'id': 'CVE-2026-21379', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-07-06T00:00:00+00:00'} -
New CVE Received by [email protected]
Jul. 06, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Qualcomm, Inc.', 'product': 'Snapdragon', 'versions': [{'status': 'affected', 'version': 'AQT1000'}, {'status': 'affected', 'version': 'Cologne'}, {'status': 'affected', 'version': 'FastConnect 6200'}, {'status': 'affected', 'version': 'FastConnect 6700'}, {'status': 'affected', 'version': 'FastConnect 6800'}, {'status': 'affected', 'version': 'FastConnect 6900'}, {'status': 'affected', 'version': 'FastConnect 7800'}, {'status': 'affected', 'version': 'IQX5121'}, {'status': 'affected', 'version': 'IQX7181'}, {'status': 'affected', 'version': 'QCA0000'}, {'status': 'affected', 'version': 'QCA6391'}, {'status': 'affected', 'version': 'QCA6420'}, {'status': 'affected', 'version': 'QCA6430'}, {'status': 'affected', 'version': 'QCM5430'}, {'status': 'affected', 'version': 'QCM6490'}, {'status': 'affected', 'version': 'Qualcomm Video Collaboration VC3 Platform'}, {'status': 'affected', 'version': 'SC8380XP'}, {'status': 'affected', 'version': 'Snapdragon 7c+ Gen 3 Compute'}, {'status': 'affected', 'version': 'Snapdragon 8c Compute Platform "Poipu Lite"'}, {'status': 'affected', 'version': 'Snapdragon 8c Compute Platform (SC8180XP-AD) "Poipu Lite"'}, {'status': 'affected', 'version': 'Snapdragon 8cx Compute Platform'}, {'status': 'affected', 'version': 'Snapdragon 8cx Compute Platform "Poipu Pro"'}, {'status': 'affected', 'version': 'Snapdragon 8cx Gen 2 5G Compute Platform'}, {'status': 'affected', 'version': 'Snapdragon 8cx Gen 2 5G Compute Platform "Poipu Pro"'}, {'status': 'affected', 'version': 'Snapdragon 8cx Gen 3 Compute Platform'}, {'status': 'affected', 'version': 'WCD9340'}, {'status': 'affected', 'version': 'WCD9341'}, {'status': 'affected', 'version': 'WCD9370'}, {'status': 'affected', 'version': 'WCD9375'}, {'status': 'affected', 'version': 'WCD9378C'}, {'status': 'affected', 'version': 'WCD9380'}, {'status': 'affected', 'version': 'WCD9385'}, {'status': 'affected', 'version': 'WSA8810'}, {'status': 'affected', 'version': 'WSA8815'}, {'status': 'affected', 'version': 'WSA8830'}, {'status': 'affected', 'version': 'WSA8835'}, {'status': 'affected', 'version': 'WSA8840'}, {'status': 'affected', 'version': 'WSA8845'}, {'status': 'affected', 'version': 'WSA8845H'}, {'status': 'affected', 'version': 'X2000077'}, {'status': 'affected', 'version': 'X2000086'}, {'status': 'affected', 'version': 'X2000090'}, {'status': 'affected', 'version': 'X2000092'}, {'status': 'affected', 'version': 'X2000094'}, {'status': 'affected', 'version': 'XG101002'}, {'status': 'affected', 'version': 'XG101032'}, {'status': 'affected', 'version': 'XG101039'}], 'platforms': ['Snapdragon Compute', 'Snapdragon Industrial IOT'], 'defaultStatus': 'unaffected'}] Added Description Memory Corruption when allocating memory with sizes that exceed the maximum allowed value. Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-126 Added Reference https://docs.qualcomm.com/product/publicresources/securitybulletin/july-2026-bulletin.html -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 06, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-21379', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-07-06T20:55:02.410730Z'}
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.