CVE-2026-21371 (GCVE-0-2026-21371)
Vulnerability from cvelistv5 – Published: 2026-04-06 15:33 – Updated: 2026-04-07 03:55
VLAI?
Title
Buffer Over-read in WinBlast Driver
Summary
Memory Corruption when retrieving output buffer with insufficient size validation.
Severity ?
7.8 (High)
CWE
- CWE-126 - Buffer Over-read
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Qualcomm, Inc. | Snapdragon |
Affected:
AQT1000
Affected: Cologne Affected: FastConnect 6200 Affected: FastConnect 6700 Affected: FastConnect 6800 Affected: FastConnect 6900 Affected: FastConnect 7800 Affected: QCA0000 Affected: QCA6391 Affected: QCA6420 Affected: QCA6430 Affected: QCM5430 Affected: QCM6490 Affected: Qualcomm Video Collaboration VC3 Platform Affected: SC8380XP Affected: SM6250 Affected: Snapdragon 460 Mobile Platform Affected: Snapdragon 662 Mobile Platform Affected: Snapdragon 7c Compute Platform Affected: Snapdragon 7c Gen 2 Compute Platform "Rennell Pro" Affected: Snapdragon 7c+ Gen 3 Compute Affected: Snapdragon 8c Compute Platform "Poipu Lite" Affected: Snapdragon 8c Compute Platform (SC8180XP-AD) "Poipu Lite" Affected: Snapdragon 8cx Compute Platform Affected: Snapdragon 8cx Compute Platform "Poipu Pro" Affected: Snapdragon 8cx Gen 2 5G Compute Platform Affected: Snapdragon 8cx Gen 2 5G Compute Platform "Poipu Pro" Affected: Snapdragon 8cx Gen 3 Compute Platform Affected: WCD9340 Affected: WCD9341 Affected: WCD9370 Affected: WCD9375 Affected: WCD9378C Affected: WCD9380 Affected: WCD9385 Affected: WCN3950 Affected: WCN3988 Affected: WSA8810 Affected: WSA8815 Affected: WSA8830 Affected: WSA8835 Affected: WSA8840 Affected: WSA8845 Affected: WSA8845H Affected: X2000077 Affected: X2000086 Affected: X2000090 Affected: X2000092 Affected: X2000094 Affected: XG101002 Affected: XG101032 Affected: XG101039 |
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\"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\", \"Snapdragon Mobile\"], \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://docs.qualcomm.com/product/publicresources/securitybulletin/april-2026-bulletin.html\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Memory Corruption when retrieving output buffer with insufficient size validation.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-126\", \"description\": \"CWE-126 Buffer Over-read\"}]}], \"providerMetadata\": {\"orgId\": \"2cfc7d3e-20d3-47ac-8db7-1b7285aff15f\", \"shortName\": \"qualcomm\", \"dateUpdated\": \"2026-04-06T15:33:47.240Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-21371\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-04-07T03:55:48.143Z\", \"dateReserved\": \"2025-12-17T04:35:45.742Z\", \"assignerOrgId\": \"2cfc7d3e-20d3-47ac-8db7-1b7285aff15f\", \"datePublished\": \"2026-04-06T15:33:47.240Z\", \"assignerShortName\": \"qualcomm\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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