CVE-2026-49415
Local kernel race in execve allows privilege escalation via /proc.
Is CVE-2026-49415 being exploited?
Not confirmed. CVE-2026-49415 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 0.22% probability of exploitation in the next 30 days.
How severe is CVE-2026-49415?
CVE-2026-49415 is rated High with a CVSS score of 8.8. 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-2026-49415?
Yes. A fix has been recorded for CVE-2026-49415. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-49415 affect?
CVE-2026-49415 affects Linux kernel (execve path), Distributions exposing /proc or linprocfs, SUID/setuid binaries, Multi-user Linux systems. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-49415?
Apply vendor kernel updates when released; restrict /proc (hidepid=2); remove untrusted SUID binaries.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Local privilege escalation to root by modifying a SUID process's address space via a procfs race during execve.
Immediate action required
- affected>= 15.1-RELEASE and < p1
- affected>= 15.0-RELEASE and < p11
- affected>= 14.4-RELEASE and < p7
- affected>= 14.3-RELEASE and < p16
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.