CVE Explorer

CVE-2026-42442

NanaZip is an open source file archive. From 5.0.1252.0 to before 6.0.1698.0, a null-pointer dereference exists in the UFS/UFS2 filesystem image parser in NanaZip. The vulnerability is triggered when opening a crafted UFS image where the root inode (inode 2) is set to IFLNK (symlink) instead of IFDIR (directory). The parser unconditionally treats the root inode as a directory without checking its type, and when the symlink has an embedded target (small di_size), the directory data buffer is zero

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:7bbf033b8eadc928a126612511415302172d90c92b9eb8c5b80bb3f11890d819

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:v2:7f476bce3511432c0317cad910edc2a701a0d5f42e48d74987b193a607e77da9 · sha256:f5394d8967d4f17b… · /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:v2:7f476bce3511432c0317cad910edc2a701a0d5f42e48d74987b193a607e77da9 · sha256:f5394d8967d4f17b… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-476","description":"CWE-476: NULL Pointer Dereference","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:7f476bce3511432c0317cad910edc2a701a0d5f42e48d74987b193a607e77da9 · sha256:f5394d8967d4f17b… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion

{"name":"https://github.com/M2Team/NanaZip/security/advisories/GHSA-8r4x-fx3w-ph77","tags":["x_refsource_CONFIRM"],"url":"https://github.com/M2Team/NanaZip/security/advisories/GHSA-8r4x-fx3w-ph77"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:7f476bce3511432c0317cad910edc2a701a0d5f42e48d74987b193a607e77da9 · sha256:f5394d8967d4f17b… · /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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