CVE-2026-74693 is a vulnerability in Linux Kernel
Published on August 22, 2026
net: prestera: validate firmware header length
In the Linux kernel, the following vulnerability has been resolved:
net: prestera: validate firmware header length
prestera_fw_hdr_parse() reads the firmware header before checking
that the firmware image contains that header.
Reject images shorter than struct prestera_fw_header before decoding the
magic and version fields.
Products Associated with CVE-2026-74693
Want to know whenever a new CVE is published for Linux Kernel? stack.watch will email you.
Affected Versions
Linux:- Version 4c2703dfd7fabb0824b3bc345f9fa47e33248c14 and below 38a3afbf9fd8a2e8c47fa3ca47b425a8a9623240 is affected.
- Version 4c2703dfd7fabb0824b3bc345f9fa47e33248c14 and below 0fbcceb9d19f2d1dcdf099aee590f2517cb718bb is affected.
- Version 4c2703dfd7fabb0824b3bc345f9fa47e33248c14 and below e0f382e8084117f0b11ffb070fe1079e38c0d7f9 is affected.
- Version 4c2703dfd7fabb0824b3bc345f9fa47e33248c14 and below 6fad06bb793d7089ae05b9fcf46e11be2dfe4850 is affected.
- Version 4c2703dfd7fabb0824b3bc345f9fa47e33248c14 and below 470ac9cce7308e60cf2dceb448749cdd006e73de is affected.
- Version 4c2703dfd7fabb0824b3bc345f9fa47e33248c14 and below 363e048a9d0a6c245cbc348c8a220170afed046a is affected.
- Version 4c2703dfd7fabb0824b3bc345f9fa47e33248c14 and below 7fa8a12296d8d5aa4b1c3904f0b354d81124cf29 is affected.
- Version 4c2703dfd7fabb0824b3bc345f9fa47e33248c14 and below 8ae344eb540af3f457179b52bc6061416752485c is affected.
- Version 5.10 is affected.
- Before 5.10 is unaffected.
- Version 5.10.265, <= 5.10.* is unaffected.
- Version 5.15.216, <= 5.15.* is unaffected.
- Version 6.1.183, <= 6.1.* is unaffected.
- Version 6.6.152, <= 6.6.* is unaffected.
- Version 6.12.104, <= 6.12.* is unaffected.
- Version 6.18.45, <= 6.18.* is unaffected.
- Version 7.1.9, <= 7.1.* is unaffected.
- Version 7.2, <= * is unaffected.