CVE-2026-33524 — Zserio: Integer Overflow in BitStreamReader and Unbounded Memory Allocation in Deserialization
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 memo…
Published: 2026-04-24 · CVSS: 7.5 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7