CVE-2026-21382: CWE-120 Buffer Copy Without Checking Size of Input ('Classic Buffer Overflow') in Qualcomm, Inc. Snapdragon
CVE-2026-21382 is a high-severity buffer overflow vulnerability in Qualcomm Snapdragon components. It involves memory corruption triggered by handling power management requests with improperly sized input/output buffers. This vulnerability affects multiple Snapdragon versions and related components. The CVSS score is 7. 8, indicating high impact on confidentiality, integrity, and availability. No official patch or remediation guidance is currently available from the vendor. There are no known exploits in the wild at this time.
AI Analysis
Technical Summary
CVE-2026-21382 is a classic buffer overflow vulnerability (CWE-120) in Qualcomm Snapdragon products. It occurs due to insufficient validation of input/output buffer sizes when processing power management requests, leading to memory corruption. The affected products include various Snapdragon and FastConnect versions, as well as several Qualcomm chipsets. The vulnerability has a CVSS v3.1 base score of 7.8, reflecting local attack vector with low complexity, requiring low privileges and no user interaction, and resulting in high confidentiality, integrity, and availability impacts. No patch or official remediation level has been published by Qualcomm as of the data provided.
Potential Impact
Successful exploitation of this vulnerability could lead to memory corruption, potentially allowing an attacker with local access and low privileges to execute arbitrary code, cause denial of service, or compromise system confidentiality and integrity. The high CVSS score indicates significant risk if exploited, but no known exploits are reported in the wild currently.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, limit local access to affected devices and monitor for updates from Qualcomm. No vendor-provided temporary or official fixes are currently documented.
CVE-2026-21382: CWE-120 Buffer Copy Without Checking Size of Input ('Classic Buffer Overflow') in Qualcomm, Inc. Snapdragon
Description
CVE-2026-21382 is a high-severity buffer overflow vulnerability in Qualcomm Snapdragon components. It involves memory corruption triggered by handling power management requests with improperly sized input/output buffers. This vulnerability affects multiple Snapdragon versions and related components. The CVSS score is 7. 8, indicating high impact on confidentiality, integrity, and availability. No official patch or remediation guidance is currently available from the vendor. There are no known exploits in the wild at this time.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-21382 is a classic buffer overflow vulnerability (CWE-120) in Qualcomm Snapdragon products. It occurs due to insufficient validation of input/output buffer sizes when processing power management requests, leading to memory corruption. The affected products include various Snapdragon and FastConnect versions, as well as several Qualcomm chipsets. The vulnerability has a CVSS v3.1 base score of 7.8, reflecting local attack vector with low complexity, requiring low privileges and no user interaction, and resulting in high confidentiality, integrity, and availability impacts. No patch or official remediation level has been published by Qualcomm as of the data provided.
Potential Impact
Successful exploitation of this vulnerability could lead to memory corruption, potentially allowing an attacker with local access and low privileges to execute arbitrary code, cause denial of service, or compromise system confidentiality and integrity. The high CVSS score indicates significant risk if exploited, but no known exploits are reported in the wild currently.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, limit local access to affected devices and monitor for updates from Qualcomm. No vendor-provided temporary or official fixes are currently documented.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- qualcomm
- Date Reserved
- 2025-12-17T04:35:45.743Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69d3dfad0a160ebd92c70959
Added to database: 4/6/2026, 4:30:37 PM
Last enriched: 4/6/2026, 4:45:30 PM
Last updated: 4/6/2026, 7:04:14 PM
Views: 6
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