Answer in brief
CVE-2026-74693 records a Unknown severity vulnerability in net: prestera: validate firmware header length. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=4c2703dfd7fabb0824b3bc345f9fa47e33248c14 <38a3afbf9fd8a2e8c47fa3ca47b425a8a9623240 || >=4c2703dfd7fabb0824b3bc345f9fa47e33248c14 <0fbcceb9d19f2d1dcdf099aee590f2517cb718bb || >=4c2703dfd7fabb0824b3bc345f9fa47e33248c14 <e0f382e8084117f0b11ffb070fe1079e38c0d7f9 || >=4c2703dfd7fabb0824b3bc345f9fa47e33248c14 <6fad06bb793d7089ae05b9fcf46e11be2dfe4850 || >=4c2703dfd7fabb0824b3bc345f9fa47e33248c14 <470ac9cce7308e60cf2dceb448749cdd006e73de || >=4c2703dfd7fabb0824b3bc345f9fa47e33248c14 <363e048a9d0a6c245cbc348c8a220170afed046a || >=4c2703dfd7fabb0824b3bc345f9fa47e33248c14 <7fa8a12296d8d5aa4b1c3904f0b354d81124cf29 || >=4c2703dfd7fabb0824b3bc345f9fa47e33248c14 <8ae344eb540af3f457179b52bc6061416752485c | 38a3afbf9fd8a2e8c47fa3ca47b425a8a9623240, 0fbcceb9d19f2d1dcdf099aee590f2517cb718bb, e0f382e8084117f0b11ffb070fe1079e38c0d7f9, 6fad06bb793d7089ae05b9fcf46e11be2dfe4850, 470ac9cce7308e60cf2dceb448749cdd006e73de, 363e048a9d0a6c245cbc348c8a220170afed046a, 7fa8a12296d8d5aa4b1c3904f0b354d81124cf29, 8ae344eb540af3f457179b52bc6061416752485c |
| Linux/Linuxgeneric | 5.10 | Not reported |
Published upstream
Aug 22, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 22, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 22, 2026
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.
Quoted source text, attributed separately from HOL analysis.