CVE-2026-21385: Qualcomm Multiple Chipsets Memory Corruption Vulnerability
Advisory generated from the CVE record, CISA, Exploit Observer and VEDAS: what it is, whether it is exploited, who is affected, and how to fix and detect it.
Generated by VEDAS. Scores as of 2026-11-01 19:19 UTC. Rebuilt every few hours from cve-scores, CISA KEV and vedas-signatures. How this works and its limits.
What it is
Memory corruption while using alignments for memory allocation.
Description quoted from the CVE record (assigned by qualcomm, published 2026-03-02).
Weakness: CWE-190 Integer Overflow or Wraparound
How it can be exploited
Exploitable with local access with low attack complexity needing low privileges and no user interaction. Impact: confidentiality high, integrity high, availability high. CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA assessment (SSVC): CISA assesses exploitation as active. Automatable: no. Technical impact: total.
- On CISA KEV since
- 2026-03-03
- US federal deadline
- 2026-03-24
- Ransomware use
- Not known
Public exploit evidence (Exploit Observer)
Also known as: BDU:2026-02466, EUVD-2026-9202, GHSA-wwwq-962j-m7x8
Exploit Observer links 1 piece of public exploit code or detection modules that name this CVE or one of its aliases.
Exploit code and modules (1)
Code that names this CVE. A repository can be a working exploit, a scanner, a fake or malware; read it before running anything.
- Code repository: https://github.com/unionnx/cve-2026-21385
Vulnerability databases and vendor advisories (4)
Catalogue entries, not exploit evidence.
- Vulnerability database or vendor advisory: https://euvd.enisa.europa.eu/enisa/EUVD-2026-9202
- Vulnerability database or vendor advisory: https://github.com/advisories/GHSA-wwwq-962j-m7x8
- Vulnerability database or vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-21385
- Vulnerability database or vendor advisory: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-21385
News (2)
- News: https://securityaffairs.com/188823/security/android-devices-hit-by-exploited-qualcomm-flaw-cve-2026-21385.html
- News: https://thehackernews.com/2026/03/google-confirms-cve-2026-21385-in.html
12 more references returned by Exploit Observer did not name this CVE or an alias, so they are left out.
VEDAS data as of 2026-11-01T17:12 UTC; fetched 2026-11-02.
Live scores
- EPSS
- 0.013
some chance of attack soon - VEDAS
- 0.747
some exploit evidence - On CISA KEV
- Yes, since 2026-03-03
- Detection rule
- Out of scope (local)
Thin horizontal line: the “likely” (EPSS 0.10) or “strong” (VEDAS 0.90) threshold. Shaded “no data” areas are periods when cve-scores did not publish.
Who is affected
| Product | Affected | Not affected |
|---|---|---|
| Qualcomm, Inc. Snapdragon | version 5G Fixed Wireless Access Platform version APQ8098 version AR8031 version AR8035 version C-V2X 9150 version CSRA6620 version CSRA6640 version FastConnect 6200 and 227 more ranges | Not stated |
Version ranges exactly as the CVE record states them. “Before X” means X is the first fixed version.
Exploit Observer also maps it to: qualcomm snapdragon_429_mobile_platform_firmware, qualcomm snapdragon_460_mobile_platform_firmware, qualcomm snapdragon_480\+_5g_mobile_platform_firmware, qualcomm snapdragon_480_5g_mobile_platform_firmware, qualcomm snapdragon_4_gen_1_mobile_platform_firmware, qualcomm snapdragon_4_gen_2_mobile_platform_firmware, qualcomm snapdragon_625_mobile_platform_firmware, qualcomm snapdragon_626_mobile_platform_firmware, qualcomm snapdragon_660_mobile_platform_firmware, qualcomm snapdragon_662_mobile_platform_firmware.
How to fix it
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.
Vendor guidance:
- https://source.android.com/docs/security/bulletin/2026/2026-03-01
- https://nvd.nist.gov/vuln/detail/CVE-2026-21385
How to detect it
This bug needs local access to exploit. VEDAS signatures cover remotely exploitable bugs for now, so there is no network rule or remote check for it. Patch it and watch your endpoint telemetry for unusual local activity.
References
Exploits and technical analysis
- https://source.android.com/docs/security/bulletin/2026/2026-03-01 (third-party-advisory)
Government sources
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-21385 (government-resource)
Other references
Other databases
Where this comes from
This advisory is generated automatically by VEDAS from: CVE.org record, CISA KEV, cve-scores (EPSS and VEDAS), Exploit Observer. Text in quotes is reproduced from the source; everything else is a fixed template filled with source fields. Nothing here is written by a language model. Check the vendor advisory before acting, and read how VEDAS and Exploit Observer work, and their limits.