ZDF
Sign inSign up

Vulnerabilities

Vulnerability · CVE-2026-21375

Memory Corruption when accessing an output buffer without validating its size during IOCTL processing.

Published Apr 6, 2026 · catalog updated Jun 17, 2026 · wcn3988 firmware

Check if you run it

No confirmed exploitation is on record for CVE-2026-21375. EPSS is 0.07%. Act only if a listed version of wcn3988 firmware is installed.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.07%
Remediation
Advisory link
Affected products
cpe qualcomm/wcn3988 firmware · cpe qualcomm/wsa8830 firmware · cpe qualcomm/wsa8832 firmware · cpe qualcomm/wsa8835 firmware · cpe qualcomm/wsa8840 firmware · cpe qualcomm/wsa8845 firmware

Memory Corruption when accessing an output buffer without validating its size during IOCTL processing.

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/wcn3988 firmwareversion unspecified
  • cpe qualcomm/wsa8830 firmwareversion unspecified
  • cpe qualcomm/wsa8832 firmwareversion unspecified
  • cpe qualcomm/wsa8835 firmwareversion unspecified
  • cpe qualcomm/wsa8840 firmwareversion unspecified
  • cpe qualcomm/wsa8845 firmwareversion unspecified
  • cpe qualcomm/wsa8845h firmwareversion unspecified
  • cpe qualcomm/x2000077 firmwareversion unspecified
  • cpe qualcomm/x2000086 firmwareversion unspecified
  • cpe qualcomm/x2000090 firmwareversion unspecified
  • cpe qualcomm/x2000092 firmwareversion unspecified
  • cpe qualcomm/x2000094 firmwareversion unspecified

How to fix CVE-2026-21375

What to do

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

Should you patch?

No confirmed exploitation is on record for CVE-2026-21375. EPSS is 0.07%. Act only if a listed version of wcn3988 firmware is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-126. EPSS 0.07%. There is no CISA KEV listing. 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. Apr 6, 2026 · NIST NVD

    Detected

    Memory Corruption when accessing an output buffer without validating its size during IOCTL processing.

  2. Jun 17, 2026 · NIST NVD

    Updated

    Memory Corruption when accessing an output buffer without validating its size during IOCTL processing.

Sources

  • CVE.orgVulnerability recordCVE-2026-21375

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-21375

    30-day exploitation probability 0.1%

    first.org
  • NIST NVDVulnerability recordCVE-2026-21375

    Memory Corruption when accessing an output buffer without validating its size during IOCTL processing.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.