Framework
AI/ML frameworks sit at the bottom of every AI stack — virtually every production AI system depends transitively on PyTorch or TensorFlow at the training layer, and on LangChain, LlamaIndex, or a similar orchestrator at the application layer. That concentration means a single vulnerability often affects tens of thousands of downstream services. The CVE patterns are recognisable: unsafe deserialization in model loading (the long tail of pickle), template injection in LangChain's prompt-construction utilities, SSRF in LlamaIndex's data-loader connectors, and path traversal in MLflow's experiment storage. PyTorch itself has shipped several high-severity CVEs around its distributed RPC layer. Because these libraries upgrade frequently and downstream applications pin loosely, patching is a real operational problem. AI Threat Alert tracks framework-level CVEs prominently because a single advisory often means urgent work for hundreds of teams.
| Severity | CVE | Headline | Package | CVSS |
|---|---|---|---|---|
| MEDIUM | CVE-2021-37660 | TensorFlow: DoS via divide-by-zero in inplace ops | tensorflow | 5.5 |
| MEDIUM | CVE-2021-37637 | TensorFlow: null ptr dereference in CompressElement (DoS) | tensorflow | 5.5 |
| HIGH | CVE-2021-37638 | TensorFlow: null ptr deref in RaggedTensorToTensor op | tensorflow | 7.8 |
| HIGH | CVE-2021-37639 | TensorFlow: heap OOB read via tensor restore API | tensorflow | 7.8 |
| HIGH | CVE-2021-37643 | TensorFlow: null deref in MatrixDiagPartOp, DoS risk | tensorflow | 7.1 |
| MEDIUM | CVE-2021-37647 | TensorFlow: null deref in SparseTensor ops causes DoS | tensorflow | 5.5 |
| MEDIUM | CVE-2021-37649 | TensorFlow: null ptr deref crashes inference via bad tensor | tensorflow | 5.5 |
| HIGH | CVE-2021-37635 | TensorFlow: heap OOB read in sparse reduction ops | tensorflow | 7.1 |
| HIGH | CVE-2021-37641 | TensorFlow: RaggedGather OOB read - heap leak + DoS | tensorflow | 7.1 |
| MEDIUM | CVE-2021-37644 | TensorFlow: DoS via negative TensorListReserve input | tensorflow | 5.5 |
| MEDIUM | CVE-2021-37645 | TensorFlow: integer overflow in quantize grad causes DoS | tensorflow | 5.5 |
| MEDIUM | CVE-2021-37646 | TensorFlow: StringNGrams integer overflow triggers DoS | tensorflow | 5.5 |
| HIGH | CVE-2021-37650 | TensorFlow: heap overflow in DatasetToTFRecord ops | tensorflow | 7.8 |
| HIGH | CVE-2021-37651 | TensorFlow: heap OOB r/w in FractionalAvgPoolGrad op | tensorflow | 7.8 |
| HIGH | CVE-2021-37654 | TensorFlow: OOB read/crash via ResourceGather batch_dims | tensorflow | 7.1 |
| HIGH | CVE-2021-37655 | TensorFlow: OOB heap read in ResourceScatterUpdate | tensorflow | 7.3 |
| HIGH | CVE-2021-37656 | TensorFlow: null ptr deref in RaggedTensorToSparse op | tensorflow | 7.8 |
| HIGH | CVE-2021-37657 | TensorFlow: null ptr deref in MatrixDiagV ops | tensorflow | 7.8 |
| HIGH | CVE-2021-37658 | TensorFlow: null ptr deref in MatrixSetDiagV ops | tensorflow | 7.8 |
| HIGH | CVE-2021-37659 | TensorFlow: heap OOB in cwise ops enables local RCE | tensorflow | 7.8 |