Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC AT PR UI VC VI VA CVSS EPSS %ile KEV N L N H N H H H 8.6 .0191 78.2 —
AFFECTED Product Versions Fixed ClearOS 7.9 – —
TIMELINE Jul 29 Reserved by VulnCheck Aug 3 Published (CNA: VulnCheck) Aug 4 EXPLOIT PUBLISHED — CVE-2026-67599 (ClearFoundation ClearOS). Public exploit reference added.
ClearOS 7.9 contains an OS command injection vulnerability in the Log Viewer component that allows authenticated attackers to execute arbitrary commands by submitting unsanitized input through the filter parameter, which is interpolated directly into a shell command in File.php. Attackers can inject command substitution payloads into the filter parameter to execute arbitrary commands as the webconfig user, and due to extensive NOPASSWD sudo privileges granted to that user by default, immediately escalate to root.
| Date | Event | Detail |
|---|---|---|
| July 29, 2026 | Reserved | Reserved by VulnCheck |
| August 3, 2026 | Published | Published (CNA: VulnCheck) |
| August 4, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-67599 (ClearFoundation ClearOS). Public exploit reference added. |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| ClearFoundation | ClearOS | — | 7.9 | — |
Authoritative record: CVE-2026-67599 at cve.org
Vendors: clearfoundation
Weaknesses: CWE-78
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-67599 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.