---
id: "CVE-2026-21385"
kind: "vulnerability"
aliases: ["CVE-2026-21385"]
title: "Memory corruption while using alignments for memory allocation"
severity: "high"
cvss: 7.8
epss: null
exploited: true
status: "open"
category: "infrastructure"
products: [{"name": "Qualcomm Multiple Chipsets", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm sm7675p firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm sm8475p firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm sm8550p firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm sm8635 firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm sm8635p firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm sm8650q firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm sm8750p firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm smart audio 400 platform firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm smart display 200 platform firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm snapdragon 4 gen 1 mobile platform firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm snapdragon 4 gen 2 mobile platform firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm snapdragon 429 mobile platform firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm snapdragon 460 mobile platform firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm snapdragon 480\\+ 5g mobile platform firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm snapdragon 480 5g mobile platform firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm snapdragon 6 gen 1 mobile platform firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm snapdragon 6 gen 3 mobile platform firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm snapdragon 6 gen 4 mobile platform firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm snapdragon 625 mobile platform firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm snapdragon 626 mobile platform firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm snapdragon 660 mobile platform firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm snapdragon 662 mobile platform firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm snapdragon 680 4g mobile platform firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm snapdragon 685 4g mobile platform firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm snapdragon 690 5g mobile platform firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm snapdragon 695 5g mobile platform firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm snapdragon 7\\+ gen 2 mobile platform firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm snapdragon 7 gen 1 mobile platform firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm snapdragon 778g\\+ 5g mobile platform firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm snapdragon 778g 5g mobile platform firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm snapdragon 782g mobile platform firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm snapdragon 7c\\+ gen 3 compute firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm snapdragon 7s gen 3 mobile platform firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm snapdragon 8\\+ gen 1 mobile platform firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm snapdragon 8\\+ gen 2 mobile platform firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm snapdragon 8 elite firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm snapdragon 8 elite gen 5 firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm snapdragon 8 gen 1 mobile platform firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm snapdragon 8 gen 2 mobile platform firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "qualcomm snapdragon 8 gen 3 mobile platform firmware", "fixed": [], "affected": "", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["android", "exploited", "infrastructure", "mobile-devices", "qualcomm"]
not_affected_if: ["unknown"]
published_at: "2026-03-02T17:16:29+00:00"
first_seen_at: "2026-10-23T19:11:51+00:00"
updated_at: "2026-10-23T23:44:51+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-21385", "first_seen_at": "2026-10-23T19:11:51+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-21385", "first_seen_at": "2026-10-23T23:44:51+00:00"}]
---

# Memory corruption while using alignments for memory allocation

Multiple Qualcomm chipsets have a memory corruption bug triggered by how memory is allocated with alignment. CISA reports it is actively exploited, and the sources do not say what an attacker gets beyond memory corruption.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:Qualcomm Multiple Chipsets affected ? fixed ?
- vendor:qualcomm sm7675p firmware affected ? fixed ?
- vendor:qualcomm sm8475p firmware affected ? fixed ?
- vendor:qualcomm sm8550p firmware affected ? fixed ?
- vendor:qualcomm sm8635 firmware affected ? fixed ?
- vendor:qualcomm sm8635p firmware affected ? fixed ?
- vendor:qualcomm sm8650q firmware affected ? fixed ?
- vendor:qualcomm sm8750p firmware affected ? fixed ?
- vendor:qualcomm smart audio 400 platform firmware affected ? fixed ?
- vendor:qualcomm smart display 200 platform firmware affected ? fixed ?
- vendor:qualcomm snapdragon 4 gen 1 mobile platform firmware affected ? fixed ?
- vendor:qualcomm snapdragon 4 gen 2 mobile platform firmware affected ? fixed ?
- vendor:qualcomm snapdragon 429 mobile platform firmware affected ? fixed ?
- vendor:qualcomm snapdragon 460 mobile platform firmware affected ? fixed ?
- vendor:qualcomm snapdragon 480\+ 5g mobile platform firmware affected ? fixed ?
- vendor:qualcomm snapdragon 480 5g mobile platform firmware affected ? fixed ?
- vendor:qualcomm snapdragon 6 gen 1 mobile platform firmware affected ? fixed ?
- vendor:qualcomm snapdragon 6 gen 3 mobile platform firmware affected ? fixed ?
- vendor:qualcomm snapdragon 6 gen 4 mobile platform firmware affected ? fixed ?
- vendor:qualcomm snapdragon 625 mobile platform firmware affected ? fixed ?
- vendor:qualcomm snapdragon 626 mobile platform firmware affected ? fixed ?
- vendor:qualcomm snapdragon 660 mobile platform firmware affected ? fixed ?
- vendor:qualcomm snapdragon 662 mobile platform firmware affected ? fixed ?
- vendor:qualcomm snapdragon 680 4g mobile platform firmware affected ? fixed ?
- vendor:qualcomm snapdragon 685 4g mobile platform firmware affected ? fixed ?
- vendor:qualcomm snapdragon 690 5g mobile platform firmware affected ? fixed ?
- vendor:qualcomm snapdragon 695 5g mobile platform firmware affected ? fixed ?
- vendor:qualcomm snapdragon 7\+ gen 2 mobile platform firmware affected ? fixed ?
- vendor:qualcomm snapdragon 7 gen 1 mobile platform firmware affected ? fixed ?
- vendor:qualcomm snapdragon 778g\+ 5g mobile platform firmware affected ? fixed ?
- vendor:qualcomm snapdragon 778g 5g mobile platform firmware affected ? fixed ?
- vendor:qualcomm snapdragon 782g mobile platform firmware affected ? fixed ?
- vendor:qualcomm snapdragon 7c\+ gen 3 compute firmware affected ? fixed ?
- vendor:qualcomm snapdragon 7s gen 3 mobile platform firmware affected ? fixed ?
- vendor:qualcomm snapdragon 8\+ gen 1 mobile platform firmware affected ? fixed ?
- vendor:qualcomm snapdragon 8\+ gen 2 mobile platform firmware affected ? fixed ?
- vendor:qualcomm snapdragon 8 elite firmware affected ? fixed ?
- vendor:qualcomm snapdragon 8 elite gen 5 firmware affected ? fixed ?
- vendor:qualcomm snapdragon 8 gen 1 mobile platform firmware affected ? fixed ?
- vendor:qualcomm snapdragon 8 gen 2 mobile platform firmware affected ? fixed ?
- vendor:qualcomm snapdragon 8 gen 3 mobile platform firmware affected ? fixed ?

## Fix

Apply the mitigations in the vendor's Qualcomm security bulletin, as CISA directs; the sources do not name a patched version or setting.

## Timeline

- 2026-10-23T19:11:51+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-21385
- 2026-10-23T23:44:51+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-21385

## From the sources

Multiple Qualcomm chipsets contain a memory corruption vulnerability while using alignments for memory allocation.

CISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_