Qualcomm Snapdragon Compute up to XG101039 IOCTL Request heap-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.6$0-$5k0.33-

Summaryinfo

A vulnerability categorized as critical has been discovered in Qualcomm Snapdragon Compute, Snapdragon Industrial IOT and Snapdragon Mobile. Impacted is an unknown function of the component IOCTL Request Handler. Such manipulation leads to heap-based overflow. This vulnerability is referenced as CVE-2026-21372. The attack can only be performed from a local environment. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Qualcomm Snapdragon Compute, Snapdragon Industrial IOT and Snapdragon Mobile. It has been rated as critical. Affected by this issue is an unknown functionality of the component IOCTL Request Handler. The manipulation with an unknown input leads to a heap-based overflow vulnerability. Using CWE to declare the problem leads to CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). Impacted is confidentiality, integrity, and availability. CVE summarizes:

Memory Corruption when sending IOCTL requests with invalid buffer sizes during memcpy operations.

The advisory is shared for download at docs.qualcomm.com. This vulnerability is handled as CVE-2026-21372 since 12/17/2025. The exploitation is known to be easy. The attack needs to be approached locally. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 04/06/2026).

Upgrading eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.6

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.8
CNA Vector (qualcomm): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Timelineinfo

12/17/2025 CVE reserved
04/06/2026 +109 days Advisory disclosed
04/06/2026 +0 days VulDB entry created
04/06/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: qualcomm.com

Advisory: docs.qualcomm.com
Status: Confirmed

CVE: CVE-2026-21372 (🔒)
GCVE (CVE): GCVE-0-2026-21372
GCVE (VulDB): GCVE-100-355580

Entryinfo

Created: 04/06/2026 18:53
Changes: 04/06/2026 18:53 (64)
Complete: 🔍
Cache ID: 216:2EF:103

Once again VulDB remains the best source for vulnerability data.

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