CVE Explorer

CVE-2026-42627

In Arm ArmNN through 2026-03-27, an integer overflow in TensorShape::GetNumElements() in armnn/Tensor.cpp allows a crafted TFLite model file to bypass buffer size validation and trigger a heap-based buffer over-read during model optimization. The overflow occurs when multiplying tensor dimensions using 32-bit unsigned arithmetic without overflow detection, causing GetNumBytes() to return an understated allocation size. During Optimize()->InferOutputShapes(), the BatchToSpaceNdLayer reads beyond

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:dc11c6c83805396a75ed0e943d5364890ca25324899813dec7a84fd169528ee6

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-190","description":"CWE-190 Integer Overflow or Wraparound","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:f2dda711b83264bd27884318e2a0fa82c0e8bc8b0327c38a9d311dbc7c2bd7bc · sha256:b8e7e041dbb93519… · /containers/adp/0/problemTypes/0/descriptions/0

{"description":"n/a","lang":"en","type":"text"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:f2dda711b83264bd27884318e2a0fa82c0e8bc8b0327c38a9d311dbc7c2bd7bc · sha256:b8e7e041dbb93519… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion

{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:f2dda711b83264bd27884318e2a0fa82c0e8bc8b0327c38a9d311dbc7c2bd7bc · sha256:b8e7e041dbb93519… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":6.2,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:f2dda711b83264bd27884318e2a0fa82c0e8bc8b0327c38a9d311dbc7c2bd7bc · sha256:b8e7e041dbb93519… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

2 source assertions

{"cweId":"CWE-190","description":"CWE-190 Integer Overflow or Wraparound","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:f2dda711b83264bd27884318e2a0fa82c0e8bc8b0327c38a9d311dbc7c2bd7bc · sha256:b8e7e041dbb93519… · /containers/adp/0/problemTypes/0/descriptions/0

{"description":"n/a","lang":"en","type":"text"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:f2dda711b83264bd27884318e2a0fa82c0e8bc8b0327c38a9d311dbc7c2bd7bc · sha256:b8e7e041dbb93519… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions

{"url":"https://github.com/ARM-software/armnn/blob/main/src/armnn/Tensor.cpp"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:f2dda711b83264bd27884318e2a0fa82c0e8bc8b0327c38a9d311dbc7c2bd7bc · sha256:b8e7e041dbb93519… · /containers/cna/references/0

{"url":"https://github.com/ARM-software/armnn/blob/main/src/armnnTfLiteParser/TfLiteParser.cpp"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:f2dda711b83264bd27884318e2a0fa82c0e8bc8b0327c38a9d311dbc7c2bd7bc · sha256:b8e7e041dbb93519… · /containers/cna/references/1

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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