---
title: "CVE-2025-2149\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2025-2149?format=md
keywords: index, follow
---

# CVE-2025-2149

Publication date 10 March 2025

Last updated 10 July 2026

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**2.5 · Low**

[Score breakdown](https://ubuntu.com/security/CVE-2025-2149?format=md#impact-score)

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## Description

A vulnerability was found in PyTorch 2.6.0+cu124. It has been rated as
problematic. Affected by this issue is the function nnq\_Sigmoid of the
component Quantized Sigmoid Module. The manipulation of the argument
scale/zero\_point leads to improper initialization. The attack needs to be
approached locally. The complexity of an attack is rather high. The
exploitation is known to be difficult. The exploit has been disclosed to
the public and may be used.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| pytorch | 26.04 LTS resolute | Needs evaluation |
| 25.10 questing | Ignored end of life, was needs-triage |
| 25.04 plucky | Ignored end of life, was needs-triage |
| 24.10 oracular | Ignored end of life, was needs-triage |
| 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Needs evaluation |
| 20.04 LTS focal | Not in release |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

## Severity score breakdown

CVSS version:

CVSS v4.0

[CVSS v4.0](https://ubuntu.com/security/CVE-2025-2149?format=md)
[CVSS v3.0](https://ubuntu.com/security/CVE-2025-2149?format=md)

**Base score**

2.0 · Low

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Local |
  | Attack complexity | High |
  | Attack requirements | None |
  | Privileges required | Low |
  | User interaction | None |
  | Vulnerable system - Confidentiality impact | None |
  | Vulnerable system - Integrity impact | Low |
  | Vulnerable system - Availability impact | None |
  | Subsequent system - Confidentiality impact | None |
  | Subsequent system - Integrity impact | None |
  | Subsequent system - Availability impact | None |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 2.0 · Low |
  | Base + Threat score | - |
  | Base + Environmental score | - |
  | Base + Threat + Environmental score | - |

**Vector:** CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-2149)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2025-2149)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2025-2149)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2025-2149)

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2025-2149>
* <https://github.com/pytorch/pytorch/issues/147818>
* <https://github.com/pytorch/pytorch/issues/147818#issue-2877301660>
* <https://vuldb.com/?ctiid.299060>
* <https://vuldb.com/?id.299060>
* <https://vuldb.com/?submit.506563>