# Critical Photon OS Security Update

## Summary

Advisory Id     : PHSA-2026-4.0-1083

Type            : Security

Severity        : ['Critical']

Issue date      : 2026-10-14

Affected Release: 4.0

## Details

Updates of ['iperf'] packages of Photon OS have been released.
## Affected Packages

### Critical

iperf - ['[CVE-2026-101276](https://nvd.nist.gov/vuln/detail/CVE-2026-101276)']

## Solution

Update the affected packages (tdnf update package)

## Updated Packages Information

iperf-3.19.1-2.ph4.x86_64.rpm | size : 148K , sha256 : 796f494be7e55e83f75d51d6ed6acaaecbe23da4f8f887201ee728719e7e8fe6 , build time : Wed, 14 Oct 2026 19:47:45 UTC

iperf-doc-3.19.1-2.ph4.x86_64.rpm | size : 20K , sha256 : 4c4c6739ba0a9a7e96d13cb7fda0594075a3239c9d42780cf5f656aaa0df59c7 , build time : Wed, 14 Oct 2026 19:47:45 UTC