7.5

CVE-2026-33524

Exploit

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 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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Nds-association ≫ Zserio Version < 2.18.1
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.32% 0.236
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-789 Memory Allocation with Excessive Size Value

The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated.

https://github.com/ndsev/zserio/security/advisories/GHSA-cwq5-8pvq-j65j
Vendor Advisory
Exploit
Mitigation