CVE-2026-21366: Integer Overflow or Wraparound in Data Network Stack & Connectivity

Published Aug 4, 2026

Updated

Memory corruption while processing a packet with a size close to the maximum allowed value.

Event History

Aug 4, 2026

CVE Published

via MITRE·03:07 PM

Data Sourced

via MITRE·03:07 PM

DescriptionSeverityWeakness

Data Sourced

via NVD·04:16 PM

DescriptionSeverityWeakness

The severity of CVE-2026-21366 is classified as high with a score of 7.8.

CVE-2026-21366 is an integer overflow vulnerability that can lead to memory corruption.

CVE-2026-21366 can result in memory corruption while processing oversized packets, potentially compromising system integrity.

Mitigation for CVE-2026-21366 typically involves applying vendor patches and updating the affected software.

Detailed information about CVE-2026-21366 can be found in the associated security bulletins from the vendor.