CVE-2026-10673
OOB write in Zephyr ADIN2111/ADIN1110 Ethernet driver allows memory corruption.
Is CVE-2026-10673 being exploited?
Not confirmed. CVE-2026-10673 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.39% probability of exploitation in the next 30 days.
How severe is CVE-2026-10673?
CVE-2026-10673 is rated High with a CVSS score of 8.3. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-10673?
Yes. A fix has been recorded for CVE-2026-10673. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-10673 affect?
CVE-2026-10673 affects Zephyr RTOS v3.7.0 - v4.4.0, drivers/ethernet/eth_adin2111.c, ADIN2111/ADIN1110 single-pair Ethernet devices, Devices using OA SPI (10BASE-T1S/T1L). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-10673?
Upgrade Zephyr to a release containing the fix or apply vendor patch; block OA SPI frames if feasible.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Adjacent attacker can send crafted 10BASE-T1S/T1L frames to cause OOB writes, leading to DoS or potential remote code execution.
Patch when possible
- affected>= 3.7.0 and < 4.5.0
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.