Which CVEs affect Zephyr 4.5.0?
No note: the vendor names the CVE in its own advisory for this version (10 of 10).
| CVE | Severity | CVSS | Fixed from | Note |
|---|---|---|---|---|
| CVE-2026-10666 | critical | 9.8 | 4.6.0 | |
| CVE-2026-10672 | critical | 9.1 | 4.6.0 | |
| CVE-2026-10667 | high | 7.8 | 4.6.0 | |
| CVE-2026-8023 | high | 7.5 | 4.6.0 | |
| CVE-2026-10641 | high | 7.1 | 4.6.0 | |
| CVE-2026-10658 | high | 7.1 | 4.6.0 | |
| CVE-2026-7656 | medium | 6.8 | 4.6.0 | |
| CVE-2026-10651 | medium | 6.5 | 4.6.0 | |
| CVE-2026-10645 | medium | 5.5 | 4.6.0 | |
| CVE-2026-10664 | medium | 5.0 | 4.6.0 |
Which Zephyr version do I need to upgrade to?
Fixed in Zephyr 4.6.0: 10 CVEs of this version.
What changed against Zephyr 4.4.2?
113 CVEs of 4.4.2 are no longer listed for 4.5.0: CVE-2026-10593, CVE-2026-10636, CVE-2026-10637, CVE-2026-10638, CVE-2026-10639, CVE-2026-10640, CVE-2026-10642, CVE-2026-10647, CVE-2026-10663, CVE-2026-10669, CVE-2026-10670, CVE-2026-10671 (+101).
No CVE was added in 4.5.0.
What does the number mean for a device?
Counted are the CVEs public sources name for Zephyr version 4.5.0 (NVD, OSV, Vendor advisories). "Confirmed by the vendor" means the CVE record or advisory comes from the vendor itself and names this version as affected. Third-party records are counted but not marked as confirmed.
Whether a CVE is exploitable in a given device depends on which functions of the library the build contains and how they are configured. The list shows what is known for the version.
Licence notes of the sources: OSV: CC BY 4.0.
Questions
How many CVEs does Zephyr 4.5.0 have?
As of 13 Nov 2026, 10 CVEs are known for Zephyr 4.5.0, 2 critical and 4 high. The vendor names 10 in its own advisory for exactly this version.
From which version are the CVEs of Zephyr 4.5.0 fixed?
No newer listed version is free of all 10 CVEs. The "Fixed from" column names the fix version per CVE for this release line where a source states one.