Threat Intelligence / CVE / CVE-2026-21385

CVE-2026-21385 — Qualcomm Sm7675p Firmware

CISA KEV

CVSS v3.1 7.8 (HIGH) · EPSS 0.2% (higher than 46.3% of all scored CVEs) · Priority 9/10 · Published 2026-03-02

As of 2026-03-04, CVE-2026-21385 is a HIGH-severity vulnerability in Qualcomm Sm7675p Firmware, CVSS v3.1 7.8, EPSS 0.2% (46.3th percentile). It is listed in the CISA Known Exploited Vulnerabilities catalog (added 2026-03-03), with a US federal remediation deadline of 2026-03-24. Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2026-21385, most recently “Qualcomm Adreno GPU KGSL Integer Overflow Memory Corruption Zero-Day (CVE-2026-21385)”.

Last updated: 2026-03-04

What is CVE-2026-21385?

Memory corruption while using alignments for memory allocation.

The record classifies CVE-2026-21385 under weakness class CWE-190. Its CVSS v3 base vector states that the flaw requires local access to the host, needs low-privilege credentials, needs no user interaction, and has high impact on confidentiality, integrity, availability. 474 affected-product entries are recorded, across 1 vendor, listed below. The identifier was first published 195 days ago.

Severity and exploitation probability

CVSS v3.1 base score: 7.8 — HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS (FIRST): 0.2% probability of exploitation in the next 30 days, higher than 46.3% of all scored CVEs
CISA KEV: Listed since 2026-03-03, federal remediation deadline 2026-03-24
Threadlinqs priority: 9/10 — CISA KEV-listed, which Threadlinqs floors at 9
Published: 2026-03-02, last modified 2026-03-04

Is CVE-2026-21385 being exploited?

CISA added CVE-2026-21385 to the Known Exploited Vulnerabilities catalog on 2026-03-03, which means the agency holds evidence of exploitation in the wild; US federal civilian agencies had to remediate it by 2026-03-24 under BOD 22-01. It currently carries a trending score of 27 in the Threadlinqs vulnerability feed.

Affected products and versions

Qualcomm: Sm7675p Firmware, Sm7675p, Sm8475p Firmware, Sm8475p, Sm8550p Firmware, Sm8550p, Sm8635 Firmware, Sm8635, Sm8635p Firmware, Sm8635p, Sm8650q Firmware, Sm8650q, Sm8750p Firmware, Sm8750p, Smart Audio 400 Platform Firmware, Smart Audio 400 Platform, Smart Display 200 Platform Firmware, Smart Display 200 Platform, Snapdragon 4 Gen 1 Mobile Platform Firmware, Snapdragon 4 Gen 1 Mobile Platform, Snapdragon 4 Gen 2 Mobile Platform Firmware, Snapdragon 4 Gen 2 Mobile Platform, Snapdragon 429 Mobile Platform Firmware, Snapdragon 429 Mobile Platform, Snapdragon 460 Mobile Platform Firmware

Showing 25 of 474 recorded product entries.

How to fix CVE-2026-21385

The record marks a vendor fix as available for CVE-2026-21385. Patch reference: https://source.android.com/docs/security/bulletin/2026/2026-03-01. Vendor advisory: https://docs.qualcomm.com/product/publicresources/securitybulletin/march-2026-bulletin.html. Because CVE-2026-21385 is KEV-listed, US federal civilian agencies were required to apply the vendor fix, or stop using the product, by 2026-03-24. Apply the vendor fix referenced above to every affected product listed in this record, then confirm the running version against the vendor advisory.

Threat activity tracking CVE-2026-21385

1 tracked threat in the Threadlinqs corpus references CVE-2026-21385, either in the campaign’s CVE list or as an indicator on the campaign record.

Qualcomm Adreno GPU KGSL Integer Overflow Memory Corruption Zero-Day (CVE-2026-21385) — CRITICAL · 2026-03-06

Sources

Seeded from nvd and not yet processed by the Threadlinqs enrichment pipeline, so blank CVSS, EPSS or KEV fields above mean NOT MEASURED rather than measured-absent.

Full detection coverage & IOCs for threats exploiting CVE-2026-21385 are available via the Threadlinqs MCP server (Purple tier). View plans →

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