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Vulnerability record · CVE-2026-33524 · published 24 April 2026

CVE-2026-33524: Nds-association zserio vulnerability

Nds Association · Zserio

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.

7.5 CVSS 3.1 High EPSS 0.49% · top 60.6% CWE-789 · CWE-789
7.5CVSS 3.1 base score
0.49%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References, 1 tagged exploit
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/ndsev/zserio/security/advisories/GHSA-cwq5-8pvq-j65j ExploitMitigationVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.5CVE-2026-33666Nds-association zserio integer overflow vulnerabilityZserio is a framework for serializing structured data with a compact and efficient way with low overhead. Prior to 2.18.1, in BitStreamReader.h readB…EPSS 0.50%

Source: NIST National Vulnerability Database (record CVE-2026-33524), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.