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Vulnerabilities

Vulnerability · CVE-2021-1905

Qualcomm Multiple Chipsets Use-After-Free Vulnerability

Published Nov 17, 2020 · catalog updated Jun 16, 2026 · Qualcomm Multiple Chipsets

Patch now

CVE-2021-1905 is in the CISA known-exploited catalog, due May 3, 2022. Confirm Qualcomm Multiple Chipsets against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
Severity
High7.8
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
1.54%
Remediation
Remediation guidance
Affected products
cpe qualcomm/apq8009 firmware · cpe qualcomm/apq8009w firmware · cpe qualcomm/apq8017 firmware · cpe qualcomm/apq8053 firmware · cpe qualcomm/apq8064au firmware · cpe qualcomm/apq8096au firmware

Possible use after free due to improper handling of memory mapping of multiple processes simultaneously. in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe qualcomm/apq8009 firmwareversion unspecified
  • cpe qualcomm/apq8009w firmwareversion unspecified
  • cpe qualcomm/apq8017 firmwareversion unspecified
  • cpe qualcomm/apq8053 firmwareversion unspecified
  • cpe qualcomm/apq8064au firmwareversion unspecified
  • cpe qualcomm/apq8096au firmwareversion unspecified
  • cpe qualcomm/aqt1000 firmwareversion unspecified
  • cpe qualcomm/ar8031 firmwareversion unspecified
  • cpe qualcomm/ar8035 firmwareversion unspecified
  • cpe qualcomm/ar8151 firmwareversion unspecified
  • cpe qualcomm/csra6620 firmwareversion unspecified
  • cpe qualcomm/csra6640 firmwareversion unspecified
  • vendor Qualcomm Multiple Chipsetsversion unspecified

How to fix CVE-2021-1905

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2021-1905 is in the CISA known-exploited catalog, due May 3, 2022. Confirm Qualcomm Multiple Chipsets against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Affected version ranges are not on this record. Apply updates per vendor instructions.

What should an analyst verify?

CWE-416: Use After Free. EPSS 1.54%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. May 7, 2021 · Catalog

    Detected

    Possible use after free due to improper handling of memory mapping of multiple processes simultaneously. in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables

  2. Nov 3, 2021 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. May 3, 2022 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. Jun 16, 2026 · Catalog

    Updated

    Possible use after free due to improper handling of memory mapping of multiple processes simultaneously. in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables

Sources

  • CISA KEVConfirmed exploitationCVE-2021-1905

    Multiple Qualcomm Chipsets contain a use after free vulnerability due to improper handling of memory mapping of multiple processes simultaneously.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2021-1905

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2021-1905

    30-day exploitation probability 1.5%

    first.org
  • NIST NVDVulnerability recordCVE-2021-1905

    Possible use after free due to improper handling of memory mapping of multiple processes simultaneously. in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon We

    nvd.nist.gov
  • VulnCheck KEVConfirmed exploitationCVE-2021-1905

    Multiple Qualcomm Chipsets contain a use after free vulnerability due to improper handling of memory mapping of multiple processes simultaneously.

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.