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.
Affected products
nds-association: zserio
References2
- github.com/ndsev/zserio/security/advisories/GHSA-fjwv-6wcr-vqwj ExploitMitigationVendor Advisory
- github.com/ndsev/zserio/security/advisories/GHSA-fjwv-6wcr-vqwj ExploitMitigationVendor Advisory
Metrics
- CVSS 3.1
-
7.5
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 26 · as of 13 November 2026
- CWE
- CWE-190
Could this be exploited in your environment?
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