Vulnerability · Published Sep 1, 2026 · Assigned by CERTVDE
CVE-2026-78319TOCTOU Vulnerability in file exchange
Critical 9.3
In plain English
A critical-severity security flaw in ecos504 from Sauter. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 49% of all known vulnerabilities).
Severity (CVSS 4.0)9.3Critical
Exploit odds (30 days)0.6%top 50.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
A service running on the affected products contains a potential Time-of-Check Time-of-Use (TOCTOU) race condition. An unauthenticated remote attacker could exploit this race condition to bypass intended security controls. This may result in the execution of unauthorized code.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Sauter | modu680-AS | 1.0.0 – before 4.0.0 |
| Sauter | modu660-AS | 1.0.0 – before 4.0.0 |
| Sauter | modu612-LC | 1.0.0 – before 4.0.0 |
| Sauter | ecos504 | 1.0.0 – before 7.0.0 |
| Sauter | ecos505 | 1.0.0 – before 7.0.0 |
Weakness: CWE-367 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N