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CVE-2026-44215

NanaZip is an open source file archive. From 5.0.1252.0 to before 6.0.1698.0, a one-byte heap out-of-bounds null write exists in the UFS/UFS2 filesystem image parser in NanaZip. The vulnerability is triggered when opening a crafted UFS filesystem image. The attacker controls the byte offset of the write within a ~254-byte window past the heap allocation boundary. This vulnerability is fixed in 6.0.1698.0.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:4fb7af8fa381bd68ea4f1bad01b6a46ecf466f87e9760d874b3cb6f5f156fd34
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"NanaZip","vendor":"M2Team","versions":[{"status":"affected","version":">= 5.0.1250.0, < 6.0.1698.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d81a154c2441a82e69e7b70fffb69c0c6e0fa4b9aaaeefcba20b87b97f359187 · sha256:e5ab347b978582cd… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"LOW","baseScore":4.4,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:d81a154c2441a82e69e7b70fffb69c0c6e0fa4b9aaaeefcba20b87b97f359187 · sha256:e5ab347b978582cd… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-787","description":"CWE-787: Out-of-bounds Write","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:d81a154c2441a82e69e7b70fffb69c0c6e0fa4b9aaaeefcba20b87b97f359187 · sha256:e5ab347b978582cd… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"tags":["exploit"],"url":"https://github.com/M2Team/NanaZip/security/advisories/GHSA-44wh-7gc3-w936"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d81a154c2441a82e69e7b70fffb69c0c6e0fa4b9aaaeefcba20b87b97f359187 · sha256:e5ab347b978582cd… · /containers/adp/0/references/0
{"name":"https://github.com/M2Team/NanaZip/security/advisories/GHSA-44wh-7gc3-w936","tags":["x_refsource_CONFIRM"],"url":"https://github.com/M2Team/NanaZip/security/advisories/GHSA-44wh-7gc3-w936"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d81a154c2441a82e69e7b70fffb69c0c6e0fa4b9aaaeefcba20b87b97f359187 · sha256:e5ab347b978582cd… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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