CVE-2026-63998: In the Linux kernel, the following vulnerability has been resolved: ethtool: module: call ethnl_ops_complete() on module flash errors When validate() fails we are skipping over e
In the Linux kernel, the following vulnerability has been resolved:
ethtool: module: call ethnl_ops_complete() on module flash errors
When validate() fails we are skipping over ethnl_ops_complete()
even tho we already called ethnl_ops_begin().
Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-63998
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-639980.17% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 6% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-63998 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
Recent advisories for In the Linux
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- high[UPDATE] [high] Linux Kernel: Multiple vulnerabilitiescert-bund · 2026-08-03
- high[UPDATE] [high] Linux Kernel: Multiple vulnerabilitiescert-bund · 2026-08-03
- medium[UPDATE] [medium] Linux Kernel: Multiple Vulnerabilitiescert-bund · 2026-08-03
- high[UPDATE] [high] Linux Kernel: Multiple Vulnerabilitiescert-bund · 2026-08-03
- medium[NEW] [medium] Linux Kernel: Multiple vulnerabilities allow denial of servicecert-bund · 2026-08-03
- medium[NEW] [medium] Linux Kernel: Multiple vulnerabilities allow Denial of Servicecert-bund · 2026-08-03
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