CVE-2021-30285

Security-boundary compromise via incorrect memory-region mapping

Published Jan 13, 2022 · Updated Aug 3, 2024

Improper input validation in the Qualcomm Snapdragon hypervisor allows local users to corrupt memory mappings through a malformed region. The hypervisor's region-mapping path accepts inadequately validated memory-region input and creates a mapping that does not match the requested region. Local access is required, and successful exploitation can compromise confidentiality, integrity, and availability across affected chipset families.

CVSS severity9.3
Critical
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in the Qualcomm Snapdragon hypervisor allows local users to corrupt memory mappings through a malformed region. The hypervisor's region-mapping path accepts inadequately validated memory-region input and creates a mapping that does not match the requested region. Local access is required, and successful exploitation can compromise confidentiality, integrity, and availability across affected chipset families.

The record

CVE
CVE-2021-30285
Published
Jan 13, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-20, T1068
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 13, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
4.6NIST NVDAV:L/AC:L/Au:N/C:P/I:P/A:P
9.3Qualcomm, Inc.CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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