CVE-2026-74693net: prestera: validate firmware header length
- —Not scoredno CVSS score yet
- 0.18%Exploitation in 30 daysEPSS · top 93% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By Linux
- 7 days later
· 7 days later
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.18% · top 93% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 4c2703dfd7fabb0824b3bc345f9fa47e33248c14 – < 38a3afbf9fd8a2e8c47fa3ca47b425a8a9623240
- affected 4c2703dfd7fabb0824b3bc345f9fa47e33248c14 – < 0fbcceb9d19f2d1dcdf099aee590f2517cb718bb
- affected 4c2703dfd7fabb0824b3bc345f9fa47e33248c14 – < e0f382e8084117f0b11ffb070fe1079e38c0d7f9
- affected 4c2703dfd7fabb0824b3bc345f9fa47e33248c14 – < 6fad06bb793d7089ae05b9fcf46e11be2dfe4850
- affected 4c2703dfd7fabb0824b3bc345f9fa47e33248c14 – < 470ac9cce7308e60cf2dceb448749cdd006e73de
- affected 4c2703dfd7fabb0824b3bc345f9fa47e33248c14 – < 363e048a9d0a6c245cbc348c8a220170afed046a
- affected 4c2703dfd7fabb0824b3bc345f9fa47e33248c14 – < 7fa8a12296d8d5aa4b1c3904f0b354d81124cf29
- affected 4c2703dfd7fabb0824b3bc345f9fa47e33248c14 – < 8ae344eb540af3f457179b52bc6061416752485c
- affected 5.10
- unaffected < 5.10
- unaffected 5.10.265 – ≤ 5.10.*
- unaffected 5.15.216 – ≤ 5.15.*
- unaffected 6.1.183 – ≤ 6.1.*
- unaffected 6.6.152 – ≤ 6.6.*
- unaffected 6.12.104 – ≤ 6.12.*
- unaffected 6.18.45 – ≤ 6.18.*
- unaffected 7.1.9 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References8
- https://git.kernel.org/stable/c/38a3afbf9fd8a2e8c47fa3ca47b425a8a9623240 (opens in a new tab)
- https://git.kernel.org/stable/c/0fbcceb9d19f2d1dcdf099aee590f2517cb718bb (opens in a new tab)
- https://git.kernel.org/stable/c/e0f382e8084117f0b11ffb070fe1079e38c0d7f9 (opens in a new tab)
- https://git.kernel.org/stable/c/6fad06bb793d7089ae05b9fcf46e11be2dfe4850 (opens in a new tab)
- https://git.kernel.org/stable/c/470ac9cce7308e60cf2dceb448749cdd006e73de (opens in a new tab)
- https://git.kernel.org/stable/c/363e048a9d0a6c245cbc348c8a220170afed046a (opens in a new tab)
- https://git.kernel.org/stable/c/7fa8a12296d8d5aa4b1c3904f0b354d81124cf29 (opens in a new tab)
- https://git.kernel.org/stable/c/8ae344eb540af3f457179b52bc6061416752485c (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-64380 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-74693)Record last updated .