high7.5
CVE-2026-33666
Zserio is a framework for serializing structured data with a compact and efficient way with low overhead.
Impact
Zserio is a framework for serializing structured data with a compact and efficient way with low overhead. Prior to 2.18.1, in BitStreamReader.h readBytes() / readString(), the setBitPosition() bounds check receives the overflowed value and is completely bypassed. The code then reads len bytes (512 MB) from a buffer that is only a few bytes long, causing a segmentation fault. This vulnerability is fixed in 2.18.1.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Nds-Association | Zserio | before 2.18.1 |