CVE Explorer

CVE-2026-42443

NanaZip is an open source file archive. From 5.0.1252.0 to before 6.0.1698.0, an integer divide-by-zero exists in the UFS/UFS2 filesystem image parser in NanaZip. The vulnerability is triggered when opening a crafted UFS image where the superblock field fs_ipg (inodes per cylinder group) is set to zero. The parser uses this attacker-controlled value as a divisor without validation, causing an immediate hardware trap and process crash. This vulnerability is fixed in 6.0.1698.0.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:f435afddb986bde6d18cdd281027fe0d0f04bcaa5a8db838ce706738c3f28993

Known exploited

Not asserted

Disputed

Stale source

Conflicts

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:a97f905e6728ab3f278af686eb2856f01cd12d1ed132858db2f066d99d4326ca · sha256:9bac00be83b7d50b… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"LOW","baseScore":3.3,"baseSeverity":"LOW","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:a97f905e6728ab3f278af686eb2856f01cd12d1ed132858db2f066d99d4326ca · sha256:9bac00be83b7d50b… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-369","description":"CWE-369: Divide By Zero","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:a97f905e6728ab3f278af686eb2856f01cd12d1ed132858db2f066d99d4326ca · sha256:9bac00be83b7d50b… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion

{"name":"https://github.com/M2Team/NanaZip/security/advisories/GHSA-3x2h-gqqw-g3gm","tags":["x_refsource_CONFIRM"],"url":"https://github.com/M2Team/NanaZip/security/advisories/GHSA-3x2h-gqqw-g3gm"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:a97f905e6728ab3f278af686eb2856f01cd12d1ed132858db2f066d99d4326ca · sha256:9bac00be83b7d50b… · /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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