๐Ÿ›ก๏ธ CVE-2026-33666
๐ŸŸ  CVSS 7.5 โ€” High โš ๏ธ Exploit Public CWE-190 NVD
7.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

Details

Severity HIGH
CVSS Score 7.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE CWE-190
Public Exploit โš ๏ธ Yes
Source NVD
Published 2026-04-24
Updated 2026-06-02
Modified 2026-04-28
Fix URL N/A

Affected Packages

Software From version Fixed in
zserio โ€” 2.18.1

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