---
title: "CVE-2023-7250\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-2023-7250?format=md
keywords: index, follow
---

# CVE-2023-7250

Publication date 18 March 2024

Last updated 22 January 2026

---

Ubuntu priority

**Medium**

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

## Cvss 3 Severity Score

**5.3 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2023-7250?format=md#impact-score)

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## Description

A flaw was found in iperf, a utility for testing network performance using
TCP, UDP, and SCTP. A malicious or malfunctioning client can send less than
the expected amount of data to the iperf server, which can cause the server
to hang indefinitely waiting for the remainder or until the connection gets
closed. This will prevent other connections to the server, leading to a
denial of service.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| iperf3 | 25.10 questing | Not affected |
| 25.04 plucky | Not affected |
| 24.10 oracular | Not affected |
| 24.04 LTS noble | Not affected |
| 23.10 mantic | Ignored end of life, was needs-triage |
| 22.04 LTS jammy | Fixed 3.9-1+deb11u1ubuntu0.1 |
| 20.04 LTS focal | Fixed 3.7-3ubuntu0.1~esm1  Ubuntu Pro |
| 18.04 LTS bionic | Fixed 3.1.3-1ubuntu0.1~esm1  Ubuntu Pro |
| 16.04 LTS xenial | Fixed 3.0.11-1ubuntu0.1~esm2  Ubuntu Pro |

---

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

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## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

5.3 · Medium

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Network |
  | Attack complexity | Low |
  | Privileges required | None |
  | User interaction | None |
  | Scope | Unchanged |
  | Confidentiality impact | None |
  | Integrity impact | None |
  | Availability impact | Low |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 5.3 · Medium |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-7250)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2023-7250)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2023-7250)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2023-7250)

### Related Ubuntu Security Notices (USN)

+ [USN-7970-1](https://usn.ubuntu.com/USN-7970-1)
+ iperf3 vulnerabilities
+ 21 January 2026

### Other references

* <https://downloads.es.net/pub/iperf/esnet-secadv-2023-0002.txt.asc>
* <https://github.com/esnet/iperf/commit/5e3704dd850a5df2fb2b3eafd117963d017d07b4 (3.15)>
* <https://access.redhat.com/security/cve/CVE-2023-7250>
* <https://bugzilla.redhat.com/show_bug.cgi?id=2244707>
* <https://www.cve.org/CVERecord?id=CVE-2023-7250>