cvedb.io
CVE-2026-4426
MEDIUM · CVSS 6.5
EPSS exploitation probability: 0%
Published 2026-03-19T15:16:28.510 · Last modified 2026-06-17T10:56:33.247

Summary

A flaw was found in libarchive. An Undefined Behavior vulnerability exists in the zisofs decompression logic, caused by improper validation of a field (`pz_log2_bs`) read from ISO9660 Rock Ridge extensions. A remote attacker can exploit this by supplying a specially crafted ISO file. This can lead to incorrect memory allocation and potential application crashes, resulting in a denial-of-service (DoS) condition.

Affected products

libarchive — libarchive

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.