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Microsoft Security Response CenterCVE-2026-122330

Blosc c-blosc2 before 3.5.0 Divide-by-Zero via blosc2_schunk_get_slice_buffer()

MediumVendor CVSS 5.5 / 10 1 CVE Published Nov 13, 2026 at 8:39 PM UTC
Get alerts for azl4 blosc2 2.21.2-4.azl4 on Azure Linux

Summary

Mariner

Products covered

  • azl4 blosc2 2.21.2-4.azl4 on Azure Linux 4.0

Remediation

Release Notes

CVEs in this advisory 1

CVE-2026-122330

Updates

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Updated by Microsoft Security Response Center

    The vendor changed the advisory after it was first published.

  3. Added to SecurityAlert

    We collected the advisory from the official source.

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Uncontrolled search path for the libva software for all versions within Ring 3: User Applications may allow an escalation of privilege. Unprivileged software adversary with an authenticated user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires active user interaction. The potential vulnerability may impact the confidentiality (high), integrity (high) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.

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