Sudo is a ubiquitous system utility; this bypass enables policy evasion and potential local privilege escalation across many Linux/Unix environments.
CVE-2026-82474
Sudo intercept mode bypass via execveat lets permitted users run denied programs.
Is CVE-2026-82474 being exploited?
Not confirmed. CVE-2026-82474 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 0.13% probability of exploitation in the next 30 days.
How severe is CVE-2026-82474?
CVE-2026-82474 is rated High with a CVSS score of 8.5. 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-2026-82474?
Yes. A fix has been recorded for CVE-2026-82474. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-82474 affect?
CVE-2026-82474 affects sudo <= 1.9.17p2, systems using ptrace-based intercept mode. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-82474?
Upgrade sudo to the patched release (>1.9.17p2) or apply vendor patch immediately.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Local policy bypass: allowed sudo users can invoke execveat/fexecve to run denied programs, enabling unauthorized command execution or privilege escalation.
Immediate action required
- affected<= 1.9.17p2
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.