# An issue was discovered in PyTorch v2.5 and v2.7.1. Omission of profiler.stop() can cause torch.profiler.profile (PythonTracer) to crash or hang during finalization, leading to a Denial of Service ...

Advisory record · `PYSEC-2025-210`

- **Identifiers:** `PYSEC-2025-210` · `BIT-pytorch-2025-63396` · `CVE-2025-63396`
- **State:** Confirmed
- **Severity:** CVSS 3.3 Low
- **Critical:** No
- **Weakness (CWE):** [CWE-667](https://cwe.mitre.org/data/definitions/667.html)
- **Tags:** [CWE-667](https://agentprime.io/advisories/tag/cwe-667.md)
- **Published:** 12 Nov 2025
- **Updated:** 21 May 2026
- **Reviewed by a person:** No

Published by OSV at 12 Nov 2025, 21:15 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `torch` (PyPI): affected `<=2.5.0-NA`; no fixed version yet

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 3.3 Low, CVSS 3.1: `CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L`, from OSV

- **CISA KEV:** Not listed.
- **EPSS:** 0.0013, the 2nd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 12 Nov 2025, 21:15 UTC: [Confirmed by NVD](https://nvd.nist.gov/vuln/detail/CVE-2025-63396)

## Sources

- [OSV: PYSEC-2025-210](https://osv.dev/vulnerability/PYSEC-2025-210)
- <http://pytorch.com/>
- <https://github.com/Daisy2ang>
- <https://github.com/pytorch/pytorch>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/PYSEC-2025-210>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/PYSEC-2025-210/>. Everything for agents: <https://agentprime.io/llms.txt>.