An issue was discovered in Alcatel-Lucent ALE NOE deskphones through 86x8_NOE-R300.1.40.12.4180 and SIP deskphones through 86x8_SIP-R200.1.01.10.728. Because of a time-of-check time-of-use vulnerability, an authenticated attacker is able to replace the verified firmware image with malicious firmware during the update process.
https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2024-010.txt
https://www.al-enterprise.com/-/media/assets/internet/documents/n-to-s/sa-c0071-ed01.pdf