CVE-2026-74693net: prestera: validate firmware header length
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Aug 22, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 4c2703dfd7fabb0824b3bc345f9fa47e33248c14 before 38a3afbf9fd8a2e8c47fa3ca47b425a8a9623240; 4c2703dfd7fabb0824b3bc345f9fa47e33248c14 builds before 0fbcceb9d19f2d1dcdf099aee590f2517cb718bb; from 4c2703dfd7fabb0824b3bc345f9fa47e33248c14 before e0f382e8084117f0b11ffb070fe1079e38c0d7f9; from 4c2703dfd7fabb0824b3bc345f9fa47e33248c14 before 6fad06bb793d7089ae05b9fcf46e11be2dfe4850; from 4c2703dfd7fabb0824b3bc345f9fa47e33248c14 before 470ac9cce7308e60cf2dceb448749cdd006e73de; from 4c2703dfd7fabb0824b3bc345f9fa47e33248c14 before 363e048a9d0a6c245cbc348c8a220170afed046a; from 4c2703dfd7fabb0824b3bc345f9fa47e33248c14 before 7fa8a12296d8d5aa4b1c3904f0b354d81124cf29; from 4c2703dfd7fabb0824b3bc345f9fa47e33248c14 before 8ae344eb540af3f457179b52bc6061416752485c | CNA record |
References
- https://git.kernel.org/stable/c/38a3afbf9fd8a2e8c47fa3ca47b425a8a9623240
- https://git.kernel.org/stable/c/0fbcceb9d19f2d1dcdf099aee590f2517cb718bb
- https://git.kernel.org/stable/c/e0f382e8084117f0b11ffb070fe1079e38c0d7f9
- https://git.kernel.org/stable/c/6fad06bb793d7089ae05b9fcf46e11be2dfe4850
- https://git.kernel.org/stable/c/470ac9cce7308e60cf2dceb448749cdd006e73de
- https://git.kernel.org/stable/c/363e048a9d0a6c245cbc348c8a220170afed046a
- https://git.kernel.org/stable/c/7fa8a12296d8d5aa4b1c3904f0b354d81124cf29
- https://git.kernel.org/stable/c/8ae344eb540af3f457179b52bc6061416752485c
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.