CVE-2026-64879
Command injection via unsanitized filename in audit file upload.
Is CVE-2026-64879 being exploited?
Not confirmed. CVE-2026-64879 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 2.3% probability of exploitation in the next 30 days.
How severe is CVE-2026-64879?
CVE-2026-64879 is rated Critical with a CVSS score of 9.4. 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-2026-64879?
Yes. A fix has been recorded for CVE-2026-64879. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-64879 affect?
CVE-2026-64879 affects Web applications with audit file upload features, Servers that pass filenames to system/shell commands, Custom file-upload endpoints without input sanitization. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-64879?
Validate/whitelist filenames, escape/avoid shell calls, apply WAF rules, deploy filters and monitoring.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Attackers can execute arbitrary shell commands as the web server user via crafted upload filenames, enabling remote code execution and lateral movement.
Immediate action required