25 October 2026
1. What is being reported?
Security researchers have disclosed two serious vulnerabilities in the Linux Kernel's KSMBD feature before official fixes are available. These flaws could let attackers execute code remotely, meaning they could run malicious programs on a vulnerable system without physical access.
2. What this means in plain English
If your organisation uses Linux-based servers or devices with KSMBD enabled, attackers might exploit these flaws to gain control, steal data, or disrupt services. This could lead to data loss, downtime, or other security issues.
3. Could this affect a small business?
Small businesses using Linux servers or devices with KSMBD enabled could be at risk. If you do not use Linux or KSMBD, you are likely not affected. Check with your IT provider to confirm your systems' status.
4. What to do now
- Ask your IT provider if your Linux systems use KSMBD and are vulnerable.
- Ensure your IT provider applies security updates or patches as soon as they become available.
- Limit network access to Linux servers to trusted users and devices only.
- Monitor your systems for unusual activity and report any concerns promptly.
5. Ask your IT provider
Can you confirm whether our Linux systems use KSMBD and if they are protected against the recent remote code execution vulnerabilities?
6. Bottom line
If you use Linux servers, check with your IT provider now to prevent hackers from exploiting these serious security flaws.
Information based on reputable security reporting and CISA KEV listings.