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PatchSiren cyber security CVE debrief

CVE-2026-47224 M2Team CVE debrief

CVE-2026-47224 is a MEDIUM severity vulnerability in NanaZip, a 7-Zip derivative, affecting versions from 3.0.1000.0 to before 6.0.1698.0. A heap buffer-overflow read exists in the LVM2 physical-volume metadata parser. The vulnerability is triggered when opening a crafted LVM disk image. This issue has been patched in stable version 6.0.1698.0 and preview version 6.5.1742.0.

Vendor
M2Team
Product
NanaZip
CVSS
MEDIUM 4.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-12
Original CVE updated
2026-06-15
Advisory published
2026-06-12
Advisory updated
2026-06-15

Who should care

Users of NanaZip, specifically those using versions from 3.0.1000.0 to before 6.0.1698.0, should be aware of this vulnerability and take steps to update to a patched version.

Technical summary

The vulnerability is a heap buffer-overflow read in the LVM2 physical-volume metadata parser in NanaZip (via the upstream 7-Zip LvmHandler). It is triggered by opening a crafted LVM disk image.

Defensive priority

MEDIUM

Recommended defensive actions

  • Update NanaZip to stable version 6.0.1698.0 or preview version 6.5.1742.0 to patch the vulnerability.

Evidence notes

The vulnerability has a CVSS score of 4.3 and is classified as MEDIUM severity.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-47224 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-47224

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-47224 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-47224

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.