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CVE PROGRAM SOURCE RECORD7.5 High

CVE-2026-33524

Zserio: Integer Overflow in BitStreamReader and Unbounded Memory Allocation in Deserialization

Description

Zserio is a framework for serializing structured data with a compact and efficient way with low overhead. Prior to 2.18.1, a crafted payload as small as 4-5 bytes can force memory allocations of up to 16 GB, crashing any process with an OOM error (Denial of Service). This vulnerability is fixed in 2.18.1.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

ndsev zserio

  • < 2.18.1affected

References